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HK rear sight adjustment tool with red handle. Works to adjust any rear HK diopter sight.

Fits: MR556A1, MR762A1, HK416 (10,14.5, 16.5, 20 inch barrel lengths), HK417 (12, 16 inch barrel lengths). Use with rear drum sight 227635, 233197.

Originally designed for the US military’s SOPMOD rifle enhancement program, the KAC M4 Folding Front Sight is a low-profile backup sighting solution that is designed to be attached to the top rail of a rifle’s handguard. When stowed in the folded position, the M4’s sight base extends back to envelope the front sight leaf on the right and left side, helping to protect it from damage.

Front fixed sight for HK MR556, MR762A1, HK416 and other AR-15/M-16 platforms. Used with Rotary Rear Sight.

Fits: MR556A1, MR762A1, HK416 (10,14.5, 16.5, 20 inch barrel lengths), HK417 (12, 16 inch barrel lengths). Use with rear sight 227657.

REAR SIGHT,FLIP-UP, CPL., HK416

Cam pin for MR556 and HK416 rifles