The Tac14 SBM4 Stabilizing Brace Kit is a complete kit and comes ready to assemble on your Remington 870 Tac-14 shotgun. This kit includes: SBM4 Pistol Stabilizing Brace, STDT pistol receiver extension (7075 aluminum), ERGO Flat Top SUREGRIP, ERGO Remington 870 adapter, and castle nut.

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