MEGA upper with 12.5 inch AAC 300 AAC BLACKOUT barrel.

AR/M4 Beyond 5.56/.223
1

This one has shot 58 proof rounds on the barrel and bolt. Then I shot a 50 yard 5-shot group with Remington Premier Match 125 and the 4x scope.

2

Looks good Robert, that’s a heck of a group too.

3

I’ve been reading your stuff on SnipersHide and SilencerTalk. There’s a nearly 100% chance that the days are numbered for the 5.56 barrel on my new Colt 6933 (awaiting ATF stamp).

Keep up the good work. I appreciate it.

4

That is impressive. Amazing work AAC.