- Jul 29, 2014
- 49,982
I like being able to see the tip of the bullet when it's ready to fire.
No need to worry about chamber type.
I like being able to see the tip of the bullet when it's ready to fire.
Which barrel manufacturer were you considering?
BCM upper.
So the min and the "sweet spot" is about 8.5" and 9" for 300 black, and 10.5" and 11.5" for 5.56. Now to wait and watch for deals on an upper, preferably a BCM.
So the min and the "sweet spot" is about 8.5" and 9" for 300 black, and 10.5" and 11.5" for 5.56. Now to wait and watch for deals on an upper, preferably a BCM.
Only thing worth adding at this point, If you plan on attaching a suppressor, some cans have a minimum barrel length. Barrel length can whittle down your can choices.
I was actually thinking 11.5 or 12.5
The Colt Commando was 10.3". 10.5" seems to be the minimum useful length for 5.56. Much shorter than that is going to make big fireballs.
After the reports of the Mk18's long term reliability issues, I would absolutely not go under 11.5 on a DI AR-15 that was for serious work. Flash and muzzle velocity are almost secondary considerations compared to that.
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