The Fab Defense M4 Picatinny Under Rail for AR-15/M4/M16 Handguards Black is a rugged, precise FAB DEFENSE INC. component built to improve fit, feel, or function.

Our UPR 16/4 Universal Picatinny Rail provides enhanced position versatility for your Tactical Lights and lasers and any other Picatinny compatible accessory.

Available now at Dawson Defense; ships fast from our authorized distributor network.