AntTech TDC Rotary Kit for Retro Arms AK HopUp

Replaces the finicky, self adjusting sliding arm of your Retro Arms AK HopUp. 

Requires ZERO modifications to the Retro Arms HopUp itself. Some modifications to your AK's charging handle may be required if it contacts and adjusts the wheel.

Retro Arms AK HopUp, Nub, Barrel, Bucking are NOT included.