Nearly 7 years later still helping people. Great tutorial!

@BattleBeaver

3 жыл бұрын

Yep, stop making videos years ago!

Thanks for this video I'm doing similar mods next week. So still useful 9 years later!!

Thanks for putting in the effort to go above and beyond normal installation by showing what not to do. This was a great video!

@BattleBeaver

7 жыл бұрын

Thanks! Hope the video helped make your installation easier.

@russianbot5554

3 жыл бұрын

Huge help!!

Nicely done. Articulate and well explained. Much better than your average tutorial.

@BattleBeaver

3 жыл бұрын

Thanks!

Best video description ever Tks 👍

@BattleBeaver

8 ай бұрын

Thanks!

Probably the best video I have ever seen for these mods.

@BattleBeaver

9 ай бұрын

Thanks!

I've owned my Benelli M4 Tactical for several years now and have made a number of modifications to it, but never added this bolt release pad. Frankly, I thought its installation would be WAY more difficult than I've learned it actually is after viewing your terrific instructional video! I just placed an order with GG&G for one! Thank you VERY much for making this video!

@BattleBeaver

8 жыл бұрын

+XTrooper3936 Thanks for watching! The GG&G stuff is great!

Great video! I'm looking at an M4 as my first shotgun, and this seems like some of the best and easiest modifications I can get. Thank you!

One of the best how-to videos. ty.

Have started to progress to light weight smithing, and your video is very clean and informative, thank you for your ideas and process. M4 new owner.

@BattleBeaver

7 жыл бұрын

You're welcome, thanks for watching!

Excellent video. Very clear and nicely detailed instructions. Great that you also included information on what issues to avoid and how to correct them if necessary. Great recommendation on installing the specified upgrade features. Excellent microphone volume (too many other KZread videos have very low volume making it difficult, if not impossible, to hear the individual discuss his topic) and excellent video filming. Overall a superior and highly informative video. Great job!

@BattleBeaver

4 жыл бұрын

Thank you!

Thank you. IMO this video is the most clear and concise instructional video on how to install this new type of bolt release button due to your correct use of terms when explaining the various steps and use of the tools required.

@BattleBeaver

2 жыл бұрын

Thanks!

This is one of the best "how to" videos on the Benelli m4 I've seen. Thank you very much! I hope GG&G or Freedom Fighter Tactical get some new oversized bolt release buttons in stock soon.

@BattleBeaver

2 жыл бұрын

Thanks! Sadly I stopped doing new videos 5+ years ago, no time.

You made this look easy. Getting that latch pin was tough! Thank you

@BattleBeaver

5 ай бұрын

Thank you!

One of best,how to videos i have seen. Very thorough, good job!!

@BattleBeaver

3 жыл бұрын

Thanks! Glad it helped.

I just purchased the bolt release button and your video is excellent. Can't wait to install it.

@BattleBeaver

9 жыл бұрын

Thanks! You shouldn't have any problems installing it, but if you do, feel free to post your questions here. Thanks for watching!

Just installed mine today (4/4/22) and thank you took me less than five minutes with the help of your awesome tutorial video (subbed)

@BattleBeaver

2 жыл бұрын

Thanks @wolfman! Very happy you found it useful. Thanks for the sub, but I'm no longer making videos, haven't been for 2-3 years now. But glad that my videos are still helping people!

Great instruction! I’ll definitely look at this video again should I end up getting an m4.

Great job working through potential mistakes

I hardly ever comment on videos but excellent video. Thanks for making it.

@BattleBeaver

9 жыл бұрын

Thanks Steven, much appreciated. And thanks for subscribing!

top notch video, appreciate it, you explained it very well, I feel comfortable to accomplish this installation now! props!

@BattleBeaver

Жыл бұрын

Glad it helped!

Excellent video, Battle Beaver! Thank you for the effort you put into making this one!

@BattleBeaver

3 жыл бұрын

Thank you! I don't make videos any longer, wish I could.... life, and all that. :)

@robertleemurrerjr.8245

2 жыл бұрын

@@BattleBeaver Just to let you know, this video was essential to installing mine this past rainy weekend. Much appreciated and hope you get back to making useful content.

@BattleBeaver

2 жыл бұрын

@@robertleemurrerjr.8245 Thanks, it makes me happy that this 7+ years old video is still helping people! Unlikely I'll start doing videos again though, I sold all my video/audio recording equipment a couple of years ago. Again, so glad this video helped you out, THANK YOU for watching!

Excellent video showing how to install these items.

@BattleBeaver

5 ай бұрын

Glad it was helpful!

Fantastic video! Thank you for taking the time to make this.

@BattleBeaver

3 жыл бұрын

Thanks! Hope it helped you out. Haven't made a video in years, stopped making new videos when youtube demonetized firearms related videos.

Awesome video! Thanks. I love that big bolt release button.

@BattleBeaver

9 жыл бұрын

Thanks! The bold release button from GG&G is awesome!

I was able to get it done with your instruction, thank you.

@BattleBeaver

7 жыл бұрын

Glad to hear the video helped you, thanks!

Outstanding video! Thanks!

nice vid, excellent explanation on the install for the enlarged bolt release which I plan on getting for my M4

@BattleBeaver

9 жыл бұрын

Thank you, happy you found the video helpful. I think you'll like the bigger bold release!

I just purchased the same item for my Mossberg 930 and it looks to be an easy install thanks to the video, even though it's not a benelli, thanks 👍

@scfcan5886

4 жыл бұрын

Not a Benelli but a great shotgun . Polish the chamber , stay away from federal shells and you'll be fine. If you can get Remington gunclub for skeet its 100% reliable. Check Jerry Miculek's video on cleaning and maintenance. The charging handle is a good upgrade since the original one broke . Enjoy

Very informative job with your video! Thanks

@BattleBeaver

Жыл бұрын

Glad it was helpful!

ok this video sti'll helps people at 2022 :)) good job man.

Great Video ! Thanks from Germany !

@BattleBeaver

3 жыл бұрын

Thank you!

I actually did the mag extension using the Titanium 2 round extension. It is very easy to install and took two months to receive because of back log orders.

What a clear and outstanding video. Many thanks.

@BattleBeaver

3 жыл бұрын

Thank you!

That was a professional, informative video! Thank you.

@BattleBeaver

2 жыл бұрын

Glad it was helpful!

@brucetittle7139

2 жыл бұрын

@@BattleBeaver Very

no se si tu canal todavía este activo pero muchas gracias por tu video ,pude hacer cambios a mi benelli m4 gracias ,I don't know if your channel is still active but thank you very much for your video, I was able to make changes to my benelli m4, thank you very good your video

@BattleBeaver

2 жыл бұрын

Thank you!

Excellent tutorial - thanks!

@BattleBeaver

3 жыл бұрын

Thank you!

Really, it's an excellent job. Well done. 👌

@BattleBeaver

5 ай бұрын

Thanks a lot 😊

Great video 👍👍

Thank you, great tutorial.

@BattleBeaver

4 жыл бұрын

Thank you!

Great video! Very clear thank you.

@BattleBeaver

8 жыл бұрын

+kerry Flynn Thank you!

Very well done vid. Thanks!

@BattleBeaver

9 жыл бұрын

Thank you!

Great. Vlog review !!

Thanks for the video.

Yes, thank you, very helpful

@BattleBeaver

2 жыл бұрын

You're welcome! Glad it was helpful.

Also, you'll notice that it's easy to mar up your receiver with a punch while removing the retaining pin for the stock bolt release handle. You can use blue masking tape over the hole or around the hole to protect the receiver prior to punching out the pin... more layers if you are more concerned. This is for those who actually want to protect their gun from useless damage during gun work.

never noticed m4 had checkering on the back of the trigger guard. good instructional video

@BattleBeaver

10 жыл бұрын

Thanks! The Benelli M4 is great. Expensive, but awesome.

Great job!

@BattleBeaver

8 жыл бұрын

+VRM Thanks for watching!

Great job 👏

@BattleBeaver

3 жыл бұрын

Thanks!

Great video.

@BattleBeaver

2 жыл бұрын

Thanks!

fantastic instruction.

@BattleBeaver

8 жыл бұрын

+GlobalCop Thank you, much appreciated!

Note: on a Benelli M3, the GG&G bolt release will hit the forend when it is in pump action mode in the out of battery position. You will need to grind a milimeter off the end in order to prevent the forend from being caught under the bolt release.

Just did my upgrades your a good gun brother for walking us guys thru it. I hate reading directions. Vid3o is my wo4k …tnx again from a 66 y4 old LE retiree who now has time to shoot his cool toys….wife just pop in my wo4k gun room to see if I was watching PORN…I SAID YES GUNNNNN. POOORRRNNNN….

Outstanding video sir....well done!

@BattleBeaver

6 жыл бұрын

Thanks!

awesome!! thanks for the great video! now to find a vice LoL!!

@BattleBeaver

8 жыл бұрын

+Andrei Rodriguez Thank you for watching!

Very nice jobs ❤

@BattleBeaver

6 ай бұрын

Thank you! Cheers!

The bolt release stock spring is fine for me. I just put a metal pad over it because the button is too small. The tube extender looks tacky. It looks better if you just replaced the entire tube instead of just adding an extender.

What about a longer tube spring? I replaced the whole mag tube with a SS one and it required a new spring. But very well done and informative video. Now that I see how easy the bolt release is to install I’m definitely going to buy one. I used to be very timid when it came to modifying my guns. But after swapping some triggers, springs or whatever I have become much more comfortable. One time it took me 2 full days with a hand file and a rubber mallet to get a Zenitco handguard and gas tube cover installed on my VEPR. Well it took that long to insure it was as snug as a bug in a rug and wasn’t going to walk out on me. It said “Some modifications may be required” my ass! It should have said hand fitting IS required. Whatever I’m happy with it now. Again good video.

@BattleBeaver

5 жыл бұрын

Thanks for watching! Up here in Canuckistan (Canada), we can only have 5 rounds in a semi-auto rifle (or shotgun). I didn't like the "look" of the stock mag tube extension, I replaced it simply for aesthetics, so the stock spring stayed in place.

Umm what about the spring catch/limiter? You’re still only going to be able to load 5 shells?

truly a very smooth video ! would have like to see you lunch some rounds out that smooth Benelli 😋 I happen to be a knoxx brecher pistol grip man moss 500a1 pump. trying to save up for that smooth Benelli. never seen a knoxx brecher pistol grip on a simi.would that work? 😎 PS. thats one tuff ass Beaver !

@BattleBeaver

7 жыл бұрын

Not sure if that would work or not. Thanks very much for watching!

This is a great video. I would probably use some blue loctite on that tube extension. Mine would wiggle loose due to shooting. Not anymore. :)

@MrMatts076

8 жыл бұрын

How does it "wiggle loose"? Tighten up the nut till it doesn't click . I fire hundreds of rounds and never had that problem.

@tangledline

8 жыл бұрын

Matt S Beats me, probably because I beat the shit out of my gun and not baby it in a safe. 10 year warranty, over $1500...damn right I am going to use it. Hahah

Great video!!!!!!! Will I ever need to use the benelli wrench the gun came with?

@BattleBeaver

8 жыл бұрын

+Steven Segal Thank you! If you're referring to the choke wrench, you'll need that if you ever plan to switch out the choke.

how to you lock the charging handle ?

am thinking about getting the M4 and customizing it for deer hunting. would like to put on new forend for accessories i.e., pistol grip along with a red dot. we only use buckshot in the club I hunt with

@BattleBeaver

7 жыл бұрын

Don't think you can go wrong with the M4

It suddenly occurred to me after watching this video that Mr. Beaver installed the new extended magazine tube without actually extending the magazine! In order for the extended magazine tube to work, he would have had to remove the spring retaining nut then re-install it on the mag tube extension. This is what increases the mag capacity to seven rounds.

@BattleBeaver

7 жыл бұрын

You are correct! But up here in Canada, we are limited to 5 rounds in a semi-auto shotgun, and removing the spring retaining nut would be illegal up here (stupid, I know, but those are the laws we deal with up here). "Then why install the new tube?" I hear you asking.... :) Well, because I didn't like the "look" of the stock tube that had the "ribs".

@js3217

7 жыл бұрын

Then why put an aftermarket tube on it at all??

@BattleBeaver

7 жыл бұрын

Thought I was clear in my previous response.... I didn't like the way the stock tube looked.

@blazkowicz9455

4 жыл бұрын

Can’t you have 5 rounds of the maximum length shot shell with semi auto shotguns? I thought with the extension tube it would allow five 3 inch shells. Of course yes you would end up having more than five 2 3/4 but I thought they based it off the max length of shell for that shotgun. But someone do correct me if I am wrong

Did you find the larger charging handle hitting your fingers when releasing the bolt? Looks like the new charging handle is quite close to the bolt release button.

@BattleBeaver

3 жыл бұрын

I didn't have that problem.

I just bought the tactical bolt release and I tried to tap out the retaining pin but it won’t budge. Any suggestions? I don’t want to damage the receiver.

@BattleBeaver

3 жыл бұрын

You could try a little gun oil, let it sit for 20 mins, then try again. You could also try a bit of WD40. Make sure you're using a punch that is small enough to fit into the channel where the pin is.

So that extension tube won’t take the 2 extra rounds - I realize you are restricted by law - but wondering if this gg&g extension works?

@BattleBeaver

2 жыл бұрын

You're correct, here in Canada we're limited in the number of rounds in a semi-auto shotgun. I don't know anything about the GG&G tube extension, sorry.

Very good instructions sir. Will this also work for an M2?

@BattleBeaver

2 жыл бұрын

Sorry, I can't be sure. I'm not familiar with the Benelli M2. Thanks for watching though!

Hey do you prefer an aftermarket charging handle that can spin like the shotgun in the video or do you prefer a non spinning charging handle. Thanks for your time!

@BattleBeaver

3 жыл бұрын

I have no preference, sorry, I know that doesn't help.

Great Video. I'm a lefty do you have a video to switch the safety to the other side?

@BattleBeaver

2 жыл бұрын

No I do not, don't think it's possible to switch the safety to the right side. Thanks for watching!

@willh200

2 жыл бұрын

@@BattleBeaver Thanks so much for the quick reply. FYI...I did find some info/video on youtube afterwards and you can change switch the safety to support a left-handed shooter. Great videos -keep it going!

i purchased a gg&g bolt release and after installing i noticed that it only drops the bolt if i press down on the left half of the pad. (the side closest to the handgaurd). i was under the impression the bolt would drop regardless of where you press on the pad. is that normal? is yours the same way?

@BattleBeaver

8 ай бұрын

Mine works pressing on any part of it,.

Could you post a like or something where you purchased your GG&G products? Wondering if you know of a Canadian supplier that stocks them.

@BattleBeaver

9 жыл бұрын

I know of 2 Canadian suppliers that sell GG&G products. Not sure what their stock levels are right now, but you can check their websites. www.wolverinesupplies.com/ and ctcsupplies.ca/

I have a Benelli M1 Super 90, and just ordered these parts for it from GG&G. Are the internals practically the same for the M1 and M4?

@BattleBeaver

7 жыл бұрын

I don't know, I don't have an M1, sorry.

@catholicforever

7 жыл бұрын

Thank you for getting back to me. I ordered the same parts, and the internals were practically the same. This video was very helpful for installing these parts on my M1 Super 90 : )

You know any Canadian distributors that sell the IWC Multi Light Benelli M4 Mount? Trying to find any sellers that also sell it with the rail attachment version.

@BattleBeaver

4 жыл бұрын

Unfortunately I don't, sorry.

Just one question when I place the bolt release button is it supposed to be raised a little on one side ?

@BattleBeaver

2 жыл бұрын

If I understand what you're describing, yes, one side of that button should be very slightly raised.

@Mrpolobop

2 жыл бұрын

@@BattleBeaver yes that was exactly what I meant really appreciate the response thank you

Hey so I installed mine but the button is kind of cockeyed and only pushes in from the front is there something I did wrong?

@BattleBeaver

5 ай бұрын

That's strange, I don't know how that would happen. Maybe email GG&G to get help.

Where did you buy the mag extension for the shotgun M4

@BattleBeaver

3 жыл бұрын

Sorry, I can't remember where I got it 7 years ago.

How did you get gg & g stuff in Canada?

@BattleBeaver

2 жыл бұрын

It's been a long time, but I think I got them either directly from GG&G in the USA, or from ctcsupplies.ca/gg-g/

Please! Where can I purchase the stock bolt release for the benelli M4?

@BattleBeaver

5 ай бұрын

www.gggaz.com/

Do you still have your crimped tube extension? I have the military le version that came with the plus 2 tube extension already and weird enough I actually like the crimp more. Any way I could get it from you?

@BattleBeaver

7 жыл бұрын

Sold it shortly after I made this video, sorry. Thanks for watching though!

@andrewvu3495

7 жыл бұрын

quick question, during installation of the ggg bolt release, i did not have a punch and had to resort in using drill bits. well now that i realize how much easier my life would be with a punch kit i started looking on amazon but noticed that they all lacked quality. if you dont mind telling me what punch kit do you have? how much was it? and is it any good? thanks battle beaver! got yourself a subscriber here :)

@BattleBeaver

7 жыл бұрын

It's been so long since I bought my punches, I don't remember what brand they are or where I got them from. Any local hardware/tool store should have a set of pin punches for under $20.

@stvnchng4755

5 жыл бұрын

I have a crimped tube extension. LMK if you want it still.

Where did you get the GG&G bolt release in Canada?

@BattleBeaver

6 жыл бұрын

I can't remember where I got the parts, but I'm pretty sure Wolverine Supplies carries GG&G parts, and Canadian Tactical Cowboy Supplies (CTCS) does too. www.wolverinesupplies.com ctcsupplies.ca

@armchairsniper9828

4 жыл бұрын

S and j hardware make all the stuff as well

Hello, I own a Versamax and I would just like the bolt release button but it costs ridiculously over $100... I haven't found anywhere that just sells the button, I'm pretty sure I'd be able to use the already existing screw in my Pro models button. Does the whole new mechanism really have a $100's worth effect on the gun? A lot easier to push or what? Just kind of confused about it because I honestly just want to obtain an enlarged button like this. Thank You

@BattleBeaver

7 жыл бұрын

Sorry, don't have any information on the Versamax.

@df3624

7 жыл бұрын

Battle Beaver that's ok! I was just curious about you're install whether or not it was a big change

@BattleBeaver

7 жыл бұрын

Yes, on the M4 is was a great addition!

@df3624

7 жыл бұрын

The latch was? Or just the button

@BattleBeaver

7 жыл бұрын

If I could only keep one of them, I'd keep the enlarged bolt release button over the handle/latch.

I purchased the same charging handle however it doesn't click in and keeps falling out.

@BattleBeaver

3 жыл бұрын

Call or email the manufacturer, maybe you need a replacement.

Your trigger guard looks to be aluminum? Where did you find that?

@BattleBeaver

3 жыл бұрын

It's just the stock trigger guard.

Did you end up having to put Loctite on it?

@BattleBeaver

6 жыл бұрын

Yes, I put Blue Loktite on it. So far so good! Thanks for watching!

What is the stock you are using?

@BattleBeaver

3 жыл бұрын

It's just the stock that came with my Benelli M4 up here Canada.

Very good video with good instructions on installation. It seems that you've shot your M4 for many many rounds. I have a question with my M4 in terms of cosmetic damages inside rail, perhaps we can chat via pm? Thanks

@BattleBeaver

10 жыл бұрын

Thanks for the comment, I appreciate it! Feel free to post your question here, it would be easier for me to reply. Scheduling time for a private chat would be difficult for me.

@nz4165

10 жыл бұрын

Since you had a dental mirror for inspection, I was wondering if you were able to look up the rails on the receiver where the bolt goes. The question that I have is if you've seen any degradation with regards to normal wear and tare. The reason I'm asking this question is I've brought a brand new benelli m4, and after my first 100 rounds I noticed a streak mark on the inside of the rail. I've contacted the warranty and they said send it in, however the shipping alone would cost me few hundred dollars, therefore, I'm hesitant on doing so. If the wear is normal, then I probably don't need to send it in for service. Thanks

@BattleBeaver

10 жыл бұрын

Ning Zhang I just had a look, there is some normal wear on mine too. I can't be positive, but I don't think it's anything to worry about. If it's not affecting the shotgun, ie: it's still feeding and cycling fine, I wouldn't worry.

@nz4165

10 жыл бұрын

I was initially worried since it's brand new, and it was having some cycling problems, but I assume this is part of the breaking in stage. I'll put more grease the next time I go out and hopefully I won't have much failure to eject/feed problems. Thanks for your help.

Just got my new charging handle and tac pad from GG&G and thanks to your vid I installed it perfectly. One question though: is the tav pad supposed to stick out slightly from the gun?

@XTrooper3936

8 жыл бұрын

+SimplyKomplicated If you think about it, the pad must be away from the frame for it to move when you press on it. If it were tight to the frame, there would be no room for it to move inward, and it wouldn't be able to release your bolt.

@SimplyKomplicated

8 жыл бұрын

+XTrooper3936 Yeah I figured that much out after I sent the post. thanks anyway. And also, thank you for your courage.

Do they make one that will work on the older SBE's ?

@BattleBeaver

8 жыл бұрын

+Lf Cox I don't know, but you can check GG&G's website here: www.gggaz.com/

@lfcox5660

8 жыл бұрын

I called them they said no.

No mag spring to contend with?

@BattleBeaver

4 жыл бұрын

I didn't replace my mag/tube spring, so no.

I have trouble pushing shells past the factory shell catch. Does the shell catch that comes with the GG&G kit make loading the magazine easier?

@BattleBeaver

6 жыл бұрын

Not quite sure what you mean. Do you mean the shell stop? The follower? Either way, if the part you're talking about wasn't in my video, then I don't know if would make loading the magazine easier, sorry.

The. Bigger. Charging. Handle. Looks. Better. To lol

If you live in a free and Constitutional state what is the maximum number of shells you can put into the Benelli M-4? Without installing some rediculous, long mag tube that competitive shooters use. Just a tube that is as long as the barrel.

@BattleBeaver

5 жыл бұрын

Max capacity is 7 rounds I think. Up here in Canada though, we're limited to 5 rounds.

@whomagoose6897

5 жыл бұрын

@@BattleBeaver : Are ghost loads part of the "5 rounds" only? The ghost load is on the top of the lifter so it is not in the magazine tube. A similar government mandate is in the USA. Since the shotgun is imported it must be in what the ATF calls a sporting shotgun. Limited to five rounds. There is a list of parts that must be made in the USA to get a longer mag tube and the collapsible stock. The list of parts is called 922R list. The GG&G change to oversize bolt handle is one part you can change to a American made part. To allow for an imported original Benelli part. To get a Benelli collapsible stock you need two American made parts. Manufacturers know if the silliness of the ATF so all American made Benelli M-4 parts have the words "Made in the USA" prominently displayed so the ATF slugs can easily take notice. If all the required parts are exchanged an already expensive shotgun, $1800, becomes about $2600 per shotgun. Best thing is you can install all the parts over a long time. A pay as you go thing. Another example of rediculous government actions that only harasses the lawful citizenry.

does it fits for the benelli m3 too?

@BattleBeaver

7 жыл бұрын

I don't know, you check GG&G's website to see.

@MSKommando

6 жыл бұрын

Yes it fits! :) Thx for the Video!

The charging handle is made to remove the takedown pin for the trigger group. Read the manual!!!!!!!!

@BattleBeaver

8 жыл бұрын

+Matt S Thanks, I did read the manual. If I had to field strip it away from my bench and tools, yes, use the charging handle. But I was at my bench and had tools. Thanks for watching!

Just buy a Titanium full length tube.... Ahh, Canada. So glad I'm still in the USA... for now!

@AutopilotAndChill

4 жыл бұрын

bertraminc 922R regulations man. To slap in a full magazine, you have to change 3 total things to American made parts...

Is your trigger guard metal or polymer!?

@BattleBeaver

4 жыл бұрын

Don't remember, sold my M4. I'm sure you could check Benelli's website on details about the M4, it should tell you.

@shindukess

4 жыл бұрын

His trigger guard is metal. If you see the diamond pattern and no seam line running down the middle it's metal.

@stevencoughler6448

4 жыл бұрын

@@shindukess yeah I guess they make them polymer now. I just got one and was kinda bummed it's polymer. I could always buy a metal one but can't decide if it would be worth it.

@shindukess

4 жыл бұрын

@@stevencoughler6448 unless the receiver is steel I actually like the polymer better. If it ever got banged or thrashed around aluminum on aluminum would more likely stress and crack the receiver. Then again Benelli's are very resilient, high quality and tested. You can find them but they're not cheap. There's aftermarket ones too with a shell ramp to help reloading.

@BattleBeaver

4 жыл бұрын

@@shindukess is right, thanks!

Might as well just get the shorter barrel if your limited to 5rds

@BattleBeaver

7 жыл бұрын

Up here in Canada, if the barrel is under 18 inches, the firearm is in the "restricted" category up here. That means the firearm must be registered with the Federal gov't. The M4 as configured in this video has an 18.5 inch barrel.