This spec sheet details the key features of the STDT, STDT-C, and OPNT Pistol Buffer Tubes.
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The STDT-C Collared AR Pistol Buffer Tube is a standard, functioning, AR pistol buffer tube that is designed to minimize SB Tactical brace rotation and slippage.
Please note – not compatible with adjustable braces such as the SBA3 or SBA4.