THE MK777 OR THE TRIPPLE SEVEN FOR SHORT.
1/2-28 Threaded Universal Mini Pistol Brake
9mm Universal muzzle brake
!!! NO SET SCREWS !!!
just thread it on and snug up the side screw with the supplied allen key and get to work!
MATERIAL: STEEL 4140 HT
COATING: Black Nitride QP
WEIGHT: