STI 4x40 Mag Release Oversized Mag Button, Blued

STI Oversized Mag Button. You Can't Miss This. Oversized, extended mag button. Really big and non-slip grooves. This button is easy to hit under the pressure of competition. Comes complete with screw. Easy to install. Fits 4 x 40 STI, SV mag release. Oversized Mag Button, Blue.