For standard HG use with any muzzle device or suppressor use SLR 7.5" HG's
For linear comp use use SLR 8.5" to 9" HG's ( with our linear comp and a 8.5" HG you will just cover the rear part of the comp. The tube section will be just in front of HG. With a 9.0" HG you will have 1/2" if Linear tube outside of HG.
For SD SLR suppressor HG's you want the 7.5/11.5" HG's
Features:
Designed to work with both Colt/RR and Glock style AR builds
Compatible with standard mil-spec uppers and dedicated uppers
9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube
Integrated feed ramp and barrel extension
IMPORTANT: A .223/5.56 flash hider will not have enough clearance for a 9mm round to pass
Before installing a muzzle device, ensure a 9mm round will drop freely through the muzzle device bore
