Wow! I am really happy to hear how amazing Surefire’s customer service is! Thank you for sharing! This just made up my mind as to who to buy! Now that I know Surefire will backup their products like this, I’m ready to buy! Thanks! I’m so happy you were able to get your damaged products replaced! 😊

some very valuable information! thanks for sharing sir! on my quest for a bolt action build barrel right now and really looking at proof

@shofardefense

11 ай бұрын

Yes sir. I hope it helps.

You just saved me from a disaster. I’m doing a 11.5 bcm/ proof barrel with a surefire warcomp.

@shofardefense

2 ай бұрын

Glad it helped. That's the reason I made the video.

Im glad they replaced your barrel. I always get a tap and die that matches the thread pitch of the barrel in case i need to clean up the threads. Things dont always leave the factory how they should be

Dang this is really good info. Thanks sir

@shofardefense

9 ай бұрын

Hope it helps

This is a good video, thank you for taking the time to put this out.

@shofardefense

22 күн бұрын

You're welcome. I hope it helps.

Watched this with my 5yo son. As a former mechanical engineer I made it to the part of the video where you said you degreased the threads and i leaned over and said, "I'll bet you cleaning out the dishwasher that the threads galled after he got it on a couple turns." He's grumbling while unloading the dishwasher right now. Fwiw we used to spec all stainless threaded joints, or stainless to stainless fasteners be lubricated with loctite 567 or equivalent. Even just stainless threaded rod with a stainless nut got the the pipe sealant. Oil works 95% of the time but the 567 always worked.

@shofardefense

4 ай бұрын

You are definitely correct. I didn't know that at the time and was following the directions on Surefire's video. I definitely know now, and hopefully, this video saves someone else from having the same problem.

@joeritter8331

4 ай бұрын

@@shofardefense I agree it's probably not common knowledge outside of engineering and some technical trades. I appreciate the video trying to save others the trouble you went through.

Wow brother! Crazy experience, glad it worked out for you. By the way, I got my Proof setup figured out. Action screws were out of spec and now it shoots lights out! I will say the Proof is very picky when it comes to bullets. Shoots Sierra 168 bthp match 0.5 MOA consistently. Everything else shoots 1 MOA or greater.

@shofardefense

5 ай бұрын

Shalom shalom my brother. Bless you! I'm glad you got it worked out. I look forward to seeing you at the feast.

I had the SAME exact experience with a brand new Surefire SOCOM MB and new Proof carbon barrel. Same issue, not tools just hand tight. I had two identical MBs. Confirmed the other installed no problem on another Proof barrel. Short story was SF denied any liability and after arguing, they eventually agreed to replace the MB but stated the device was “in spec”. Not the first negative CS experience with SF and looking at the threads on the defective MB, it was clear there were some burs that were not removed before coating.

@shofardefense

22 күн бұрын

Sorry to hear that. I'm a little surprised surefire didn't respond better just based off the experience I had with them.

Been there done that, but with rocksett in the mix. I now order new muzzle device for each new barrel.

Just take the messed up threads down and clean them up with a file. Then use the correct thread pitch and screw on the appropriate one after lubing it of course. It can be saved.

Class 1-3 are clearance threads. They will all work with each other, and they can be mixed in use. Class 1A, and 2A have allowance for fit on the A(external) thread. Class 3A does not have an allowance, so if an internal thread (class B) tolerance is at the basic pitch diameter and a class 3A is at the basic pitch diameter, this will be "line to line" and you will have a greater chance of galling the threads. Best practice is to clean, then use a threadlocker and assemble, before assembly if you're going to test fit, use anti-seize especially if one or the other threads is SS. Nitride or phosphate will resistant galling.

@shofardefense

7 ай бұрын

Do you have any suggestions on reading or videos where I can get more info regarding the classes?

@Twong-wq3fh

6 ай бұрын

Machinist handbook, any edition will do , read the chapter on threads, you'll have a better understanding.

@strykerentllc

6 ай бұрын

@@shofardefense The only time you get an interference fit is when 3A and 3B thread forms are mating. That situation is where you get a machined fitment with virtually zero 'slop'. The 1A and 2A thread forms are clearanced to a greater degree with 1A being a very loose fit and as as such, you will notice slop when installing mating parts in either 1A or 2A. There was something amiss in your situation as 2B on the SF Warcomp should have readily installed without galling.

If you want the corner the whole holster market. Come up with a good holster that accommodates your suppressor attached

Fine threads are more prone to galling. Stainless is more prone to gall. Lubrication is needed to help prevent galling. Don't feel bad. This is not common knowledge. I know because I'm a millwright /machinist for 20 years. And to be honest I have never heard of class 2 or 3 threads. I guess I learned something today. The threads on my proof barrel are extremely precise. The machining is on par or better than high pressure swedge lock fittings. No experience with surefire but I will soon.

@shofardefense

5 ай бұрын

The Proof threads are definitely precise. Overall, it was a good learning lesson. I appreciate your comment, sir.

Lube it up before you use it! Good info 👍!

Surefire Mounts.... many are undersized!!! 4 barrels destroyed, Surefire replaced the barrels. The Warcomp are also prone to leaks gas

Same. Exact. Thing. With my 18“ neither surefire or proof seemed surprised. I sent both the barrel and brake out to surefire next day. How long did it take for the replacement barrel?

@shofardefense

10 ай бұрын

It took about 2 months for them to determine they were going to replace the barrel. However, it took about 2 more months to get it because proof was out of my barrel at the time. Let me know how it goes for you.

@tylerholt1764

7 ай бұрын

They ended up cleaning the threads and crown and replacing the muzzle device.

@shofardefense

7 ай бұрын

Are you happy with the result?

I had this happen with an x-caliber carbon barrel and a out of a drawer brake…. Ruined a vet expensive barrel

Same thing happened to me with a rainier match barrel and surefire break. Difference is surefire told me to pound sand so to speak.

@shofardefense

10 ай бұрын

I'm surprised to hear that about Surefire's response. They were extremely helpful when this happened to me.

@awsomedude9111

10 ай бұрын

no idea if you've asked them again, but I think it would be because they are in the same military support/discount group where they are working together.

I’m guessing proof research does stainless barrels? If so you need to put never seize of the threads…I’m a metal fabricator and stainless galls very fast

@shofardefense

8 ай бұрын

They are stainless. I agree. I think the problem is that rockset won't set with never seize on, so they instruct people to clean and degrease it first. The trick, in my opinion, is using never seize to put it on several times to season the threads and then removing that to put on the rockset.

I’m just letting people know. The shit isn’t gonna work now because of that orange paper insert that they put in the muzzle device package saying he uses class three threads that you don’t want to use a different class 3B3 whatever class two whatever type of thread

@shofardefense

Күн бұрын

That's good info. It's definitely best to match the threads properly, but to also use lubrication when first putting it on.

Just found this out the hard way 😡. Really hope surefire makes it right

@shofardefense

8 ай бұрын

I hope they do too. Hopefully, more people can see this video and avoid the problem. Let me know how it turns out.

@richie370

8 ай бұрын

@@shofardefense they’re replacing both but unfortunately I still have to send the new barrel out to get modified for my lmt upper. They didn’t say it was because of the thread class though which was odd. Said it was probably an end run brake. I had that brake on my a rainer arm’s barrel that sucked so I sent it back.

APA would have been your friend in this situation, live and learn.

@shofardefense

5 ай бұрын

Help me out. What is APA?

That really sucks once all the said and done, the barrel itself is 1000 bucks Now be aware your fire on their most recent muzzled devices have an orange Paper that tells you the class of threads that will work with it and do not use it with that because they’re not gonna be liable as does a company that makes your hundred dollar muzzle delays thousand dollar suppressor but they wanna lose $1000 every time someone takes a chunk of threads out of the barrel course not so companies of getting even high end companies they’ve been getting very very like where they used to be like oh we could do that for you no problem or let me check. We might actually have some MK 13 hangover still are not the same as they used to be

If barrek threads come off just from tightening a muzzle device on then its a garabge barrel no mstter the price and hype. Ive put on a million different muzzle devices and brakes and all types of everything and have never had this happening. The barrel threads had to be off. Yes school of american rifle explains the importance of chekcing whay type of threads they are

Could have saved yourself a lot of pain by simply applying some kroil oil and let it seep into the threads apply a little bit of heat to the break that will help pull the oil into the threads and it would have turned right off never try to turn a break off that you turned on to a thread dry if it seizes up without trying this technique first might save you ruining the threads

@shofardefense

7 ай бұрын

I hear what you're saying, but I'm not sure it would have helped. It was seized because on a molecular level the two surfaces had literally welded together.

There is ONLY one way any Surefire muzzle devise goes on. Dimple down! It’s a suppressor adaptor and blast diffuser adaptor. Only one way to put it on. The locking lugs must be at the bottom 6pm

@shofardefense

9 ай бұрын

Surefire disagrees with you