300 Blackout SBR

[Rosa6329]

Finally got my tax stamp to build a 300 blackout with a 8.5inch barrel. Suggestions, comments, personal reviews on barrels for this build?

 

[Golddiggie]

I like the 10.5" barrel I got from MAS Defense that's in my 300 Blackout pistol...

I also like the handguard I got from GunTecUSA. It's slant cut on the end, and I think it's a 12" version. Partially covers the muzzle device, but looks damned cool. Functions well too.

Here's how it sits right now...

I have ordered a Thordsen Customs cheek rest to replace the SigTac brace. Just waiting for it to arrive.

 

[MAD Geary]

Here's my 300 blackout SBR. I ordered an 8.5" upper from radical firearms. It's been great so far.

 

[Rosa6329]

View attachment 194081

Here's my 300 blackout SBR. I ordered an 8.5" upper from radical firearms. It's been great so far.

what kind of barrel? Twist?

 

[Golddiggie]

10.5" 300 AAC BLACKOUT 1x8 STAINLESS STEEL BARREL is what I ordered... I got the black one (ordered the bright) but I installed it before I told them (the black one was a few dollars more at the time). Once it was installed, it couldn't be returned. No additional charges were made over the cost difference. I got the muzzle brake/device on the same order...

Didn't see the other post clearly (I blame the small picture )... Still, good to know options...

IMO, the 1:8 twist will give you the best options for rounds you're going to feed it.

 

[MAD Geary]

what kind of barrel? Twist?

Radical firearms, it has a 1:8 twist barrel. As golddiggie said I believe that is the best for the barrel length and gives you flexible with bullet weights.

 

[Rosa6329]

Radical firearms, it has a 1:8 twist barrel. As golddiggie said I believe that is the best for the barrel length and gives you flexible with bullet weights.

1:8 it is

 

[Rosa6329]

Any suggestions on a stainless 10.5" with 1:8 twist? I saw noveske but they say it runs optimal with a suppressor which I can't get....

 

[ChevyGuy91]

8.5" Rainier Arms Select something or other with a Samson 7.6 hand guard. I have since ditched the eurotrash sights for a set of DD A1.5's and a PA T1 knock off, and got rid of that retarded Umbrella pistol grip for a BCM. It's probably my favorite blaster.

 

[Golddiggie]

Any suggestions on a stainless 10.5" with 1:8 twist? I saw noveske but they say it runs optimal with a suppressor which I can't get....

MAS has one... It's pistol length gas system. The one I got (back in 2013) is carbine length gas system. One of the goals/targets I had for that build (and most of the ones since) was maximum interchangability of parts. Since I don't have anything else in a pistol length system (and had no plans then, or now, to have one) I didn't see the point in going that route. Especially since I could get the carbine length system easily.

 

[Rosa6329]

8.5" Rainier Arms Select something or other with a Samson 7.6 hand guard. I have since ditched the eurotrash sights for a set of DD A1.5's and a PA T1 knock off, and got rid of that retarded Umbrella pistol grip for a BCM. It's probably my favorite blaster.

hows the accuracy with that barrel?

 

[Rosa6329]

How's the accuracy on the rainier arms select ?

 

[ChevyGuy91]

hows the accuracy with that barrel?

Well it's not a bench gun, but it is good enough shooting quietly in my back yard.

 

[Salyeica]

Well it's not a bench gun, but it is good enough shooting quietly in my back yard.

Envious

 

[Rosa6329]

Well it's not a bench gun, but it is good enough shooting quietly in my back yard.

Have you heard of spec op mfg? If so, thoughts?

 

[ChevyGuy91]

Have you heard of spec op mfg? If so, thoughts?

No. Don't over think it man, it's a short 300blk.

 

[SpeedOften]

Have you heard of spec op mfg? If so, thoughts?

No. Don't over think it man, it's a short 300blk.

http://specopmanufacturing.com/

Looks similar to Radical Firearms in terms of pricing. No idea on reliability.

Seems like they may be a bit questionable regarding turn around time from browsing reviews.

 

[RImike]

I can't wait for supressor related legislation to pass so I can kill 2 birds with 1 stone, and integrally suppressed rifle

 

[ChevyGuy91]

I can't wait for supressor related legislation to pass so I can kill 2 birds with 1 stone, and integrally suppressed rifle

https://danieldefense.com/firearms/daniel-defense-m4-carbine-isr-mil-spec-tm.html

It's a cool idea, but the idea of running a suppressor inside a float tube is not too appealing to me. That, and you are restricted to quieting down just one rifle.

 

[bigblue]

I don't get it: If you are clearly doing a stamp for the can, why not just stamp the lower at the same time? Integrally suppressed is cool and all but I agree that I would rather be able to swap the can around. You know, if I were allowed to do that.

 

[ChevyGuy91]

I don't get it: If you are clearly doing a stamp for the can, why not just stamp the lower at the same time? Integrally suppressed is cool and all but I agree that I would rather be able to swap the can around. You know, if I were allowed to do that.

Yeah, my 30cal can spends most of it's time on my 556 gun.

 

[bigblue]

Yeah, my 30cal can spends most of it's time on my 556 gun.

I assume that you run supersonic ammo through it?

 

[RImike]

I don't get it: If you are clearly doing a stamp for the can, why not just stamp the lower at the same time? Integrally suppressed is cool and all but I agree that I would rather be able to swap the can around. You know, if I were allowed to do that.

Because Rhode Island, no SBR's..

 

[ChevyGuy91]

I assume that you run supersonic ammo through it?

556? Yeah, it's a 308 can.

Subsonic .223 loads are kind of retarded. I have a 10/22 if I want .22lr performance.

 

[bigblue]

556? Yeah, it's a 308 can.

Subsonic .223 loads are kind of retarded. I have a 10/22 if I want .22lr performance.

That's what I was thinking. .223 subsonic is just .22lr with a bigger bullet.