• New Contest Starting Now! This Target Haunts Me

    Tell us about the one that got away, the flier that ruined your group, the zero that drifted, the shot you still see when you close your eyes. Winner will receive a free scope!

    Join contest

300 Blackout build

AJB

Sergeant
Full Member
Minuteman
May 30, 2007
343
7
South Florida
I am trying to plan a 300 blackout build. I have a Surefire FA762SS soon to be approved and want to use it on this upper. I wanted to use a 14.5 Noveske barrel and perm attach a MB762SSAL/RE on it.

Does anyone know what is the maximum length of a rail system/ hand guard I could use on this in this configuration?

I would like to keep this rifle as short as possible, but a 16" barrel is not out of the question. I like the AAC 16" upper but don't know if I can mount the surefire brake on it.