Few questions. About 300blk build

[toolboxluis00200]

ok this will be the mag i be using on my 300BKL upper
2 USGI and 1 Pmag Gen 1
16 upper (1 of 1)-2 by Luis f, on Flickr

[SINNER]

The most consistent and accurate factory loaded Blackout's I have found are the offerings from Hornady. Their subs were all within 20 FPS and also use the fantastic 208 gr. A-MAX bullets.

And stop worrying about the mags, Luis. ANY 5.56 mags will work just fine. Lol

[toolboxluis00200]

The most consistent and accurate factory loaded Blackout's I have found are the offerings from Hornady. Their subs were all within 20 FPS and also use the fantastic 208 gr. A-MAX bullets.

And stop worrying about the mags, Luis. ANY 5.56 mags will work just fine. Lol

lol i know i know just remember 300BLK is new to me i now more about .22lr,9mm and 223/5.56

[toolboxluis00200]

ok small update UV is not sending me the 16 barrel instead a 10.5
so now i need a new rail ?? i am looking at some 10inch rails and some .30cal muzzle breaks all so

[Txfilmmaker]

😎


Sent from my iPhone using Tapatalk

[BoilerUp]

ok small update UV is not sending me the 16 barrel instead a 10.5
so now i need a new rail ?? i am looking at some 10inch rails and some .30cal muzzle breaks all so

I have a Kaw Valley liner comp on my .300 BLK pistol that I like. Eventually I'll replace with a suppressor...

[toolboxluis00200]

I have a Kaw Valley liner comp on my .300 BLK pistol that I like. Eventually I'll replace with a suppressor...

Nice set up how you like yours

[bzdog]

I picked a MAMS for my next project, but it sounds like this is just as good and less expensive:

http://precisionarmament.com/product...-muzzle-brake/

[toolboxluis00200]

I picked a MAMS for my next project, but it sounds like this is just as good and less expensive:

http://precisionarmament.com/product...-muzzle-brake/

Thanks for the link I need to look that up on YouTube

[toolboxluis00200]

OK guys I have an issue the 300 barrel dose not fit on the small slot on the upper resiver I was doing a Mike up to show you guys the progress of the upper boom. That happen. I will post a pick soon so I can get an advice

[toolboxluis00200]

16 upper (1 of 1)-12 by Luis f, on Flickr

[UWone77]

Hit it with a rubber mallet a couple of times.

[Dstrbdmedic167]

A little grease may help too. I put some 33mm aeroshell grease on every barrel extension once I install the barrel. Had one that did like this recently. Little grease and boom, in like Flynn.

[Uffdaphil]

I've done the Aeroshel/mallet bit and it easily popped in. Better too snug than loose. Be sure to hand tight a muzzle device first. Pounding on the crown just feels wrong.

[GOST]

Like UW said hitting it with a rubber mallet will work. But if you don't want to do that, your barrel extension is probably far enough in that tightening down a barrel nut will seat it the rest of the way down.