Use your Picatinny accessories on your KeyMod handguards with ERGOs 5-Slot AR-15 KeyMod Low-Pro Cantilever U.M.P. Picatinny Rail conversion system. The outside is a Picatinny rail and the inside is the mounting system to the KeyMod handguard.
Features :
Compatible with #4238-BK Mossberg Shotgun KeyMod Forend
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