SB TACT SIG MCX/MPX PSTL BRACE 3 POS With Window The bolt hold-open feature locks

The bolt hold-open feature locks the bolt back when used with firearms designed to lock back on GLOCK-pattern magazine followers

The TF1913 is a complete assembly a solid lock-up when extended

55 Grain full metal jacket (M193)

providing a very soft feel in the shoulder thanks to gas ports dimensions that have been strenuously tested to give the utmost control to the muzzle

SB TACT SIG MCX/MPX PSTL BRACE 3 POS With Window The bolt hold-open feature locksThe MPX PSB is an innovative, 3 position adjustable Pistol Stabilizing Brace dimensioned to fit the receiver cuts of the SIG SAUER SIG MPX and SIG MCX. Ships as a complete assembly, ready to install. MCX Installation: Not compatible with the SIG MCX Stock Adapter Kit. You must have a genuine SIG MCX LOWER RECEIVER for compatibility. Features : 3 postion Adjustable Dual Compatible with SIG MPX and SIG MCX (Excluding SIG MPX Copperhead) Complete