Nerf Caliburn - VF1 Muzzle Brake

CHANGE NOTE 11/10/18: Added Alien Menace themed version

CHANGE NOTE 06/06/18: Slots for the 4-40 hex nuts have been removed. 4-40 screws now simply get driven into the print itself.

String-free and shorter option compared to the regular SCAR barrel. Performs slightly better with certain spring, barrel, and dart combinations.

Secures to the barrel OD using 4-40 screws and hex nuts (inside slots).