AR-15 BS Thread

I wouldn't risk it. No way to tell if crush washer ends up square. Only the shoulder really is.

If I was pinning it, I definitely wouldnt want another doodad between the pinned part and shoulder.

 

^ Agree with this ^ Never used them so I can't vouch but could you use something like this?

https://deadairsilencers.com/product/mask-hd-12x28-spacer/

 

I would pass on a crush washer, if you’re set on having that rail then I would file it down slightly to get the fit you want. File it down evenly and paint it and you’ll be the only one that knows it’s like, especially with the suppressor on.

 

bcm mcmr 13 is actually 13.5. I'd go this route

 

A spacer? Maybe. I think it would be considered like a very thicc shim

 

Most importantly it's actually a machined product intended for that use so the faces should be perfectly parallel to prevent baffle strikes.

 

Thanks for the responses. The majority of what I researched said the same thing about the washer not crushing evenly. I will start clear of that. I plan to cerakote the upper, lower and handguard so shaving it down isn't a huge deal.

 

If that was mine I would cut down the handguard. Looks like you have plenty of meat on the front to do that. Just my .02

 

That's what I have on my BCM 14.5". Also have a 7" MCMR on another build with a front site post. Excellent rails. Lightweight, look good and feel great in hand.

 

Finished my random AR build

 

Looks good to me. You say random was it a spare parts build or just on a whim?

 

Both.

The optic, sights, CH, and AFG I had laying around with no home. I was shopping for a 870 mag tube extension when I saw Wilson Combat had the extension and a lower on clearance and well... I don't have the best impulse control.

With everything pictured I'm in it for less than $1k so I'm happy

 

https://www.youtube.com/watch?v=6GHHk6kpYD4

Seeing the title I was like "Dude... what?"
Mind. Blown. Now I need one for the garage...

 

This came up yesterday in my suggested YouTube as well. Brilliantly simple

 

Same saw that the other day crazy simple and brilliant

 

Thinking about barrel swapping my AR in 7.62x39 for 300BO. One to keep the ammo for my AK and two, 300BO has more hunting ammo options also more reliable.

 

If you are keeping it 16”, I would go 6.5 grendel over 300 BLK for hunting applications

 

I call her shorty

 

I always forget it's a thing, but is this a 26" NOT AN AOW build?