SIG SAUER introduces the SB15 Pistol Stabilizing Brace, a shooter s aid that is designed to improve the single-handed shooting performance of buffer tube equipped pistols. Made from high-quality, elasto-polymer, the SB15 is manufactured to close tolerances and fits all pistols equipped with an AR-style buffer tube 1.0 1.2 in diameter. The Pistol Stabilizing Brace uses the operator s forearm to provide stable support, thereby minimizing accuracy-robbing spin and shift. A flexible cuff with two adjustable nylon straps allows the SB15 to be custom fit to any user. Fits all pistols equipped with an AR-style buffer tube 1.0 - 1.2 in diameter. ATF compliant* Veteran designed Made in USA Quick and easy to install * ATF has reviewed this product and determined that attaching the SB15 to a firearm does not alter the classification of the firearm or subject the firearm to NFA control.