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Specification Sheets
MPX PSB™ Specification Sheet

This spec sheet details the key features of the 3-position adjustable MPX PSB™, which is designed specifically for the SIG MPX and SIG MCX pistols.

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Installation Instructions
MPX PSB™, FS1913™ and TF1913™ Installation Instructions

This Installation Instructions sheet contains detailed instructions for attaching your Pistol Stabilizing Brace® or genuine SB Tactical® accessory to compatible firearms platforms.

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ATF Letters
BATFE Letter: Adjustable Pistol Stabilizing Brace®

The Bureau of Alcohol, Tobacco, Firearms and Explosives has issued several letters regarding SB Tactical® Pistol Stabilizing Braces, including this one from 2015 related to adjustable technology.

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Our products are designed and intended only for use as forearm braces to provide a more stable firearm platform. They are neither designed nor intended to be fired from the shoulder. As configuration changes may alter the classification of a particular firearm, the user bears sole responsibility for determining the correct application of state and federal law.
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