Product Details
1/2 - 28 to 15mm x 1mm thread adapter.
U.S. made HK-AR thread adapter made by BRP Corp. This adapter allows you to use HK muzzle devises on your M16, AR15, SIG556 and other weapons that use this common U.S. thread pattern.
Specifications: (1/2" wrench flat for standard M16 armorer's wrench. Machined from 4140 chrome-moly steel. Dark parkerized finish is a great match for HK flash hiders.)
