Wrapped up my latest build, AR-15 SBR in 300BLK. Aero Precision lower, upper, and free float handguard, 8.5" 300BLK barrel from TR Enabling, Red Jacket Firearms buttstock, and Trijicon MRO sight. The handguard covers the barrel by 1/2", but the muzzlebreak for the suppressor sticks out past the handguard. Planning to test drive it this weekend. Total weight without a magazine is 6lbs 4oz.