Ask the Community

Yes it is compatible with the 12 and the 20 ga guns see******The SB Tactical 590-SBM4 Mossberg 590 Shockwave 12/20 pistol stabilizing brace is specifically built for the Mossberg 590 Shockwave platform to provide you with additionally versatility and weapon control. The 590-SBM4 will allow you to enhance and improve the controllability of the firearm by adding a third point of contact for superior stabilization. This unit in a complete assembly that is ready to install. This brace is ATF Compliant and are US Veteran designed and proudly made in the USA. Specifications and Features: SB Tactical 590-SBM4 Pistol Stabilizing Brace 590-SBM4-01-SB Complete Assembly Ready To Assemble 12/20 Gauge Shotgun Compatible ATF Compliant US Veteran Designed Proudly Made in the USA Overall Length 10.25" Overall Width 2.1" Strap Width 1.0" Overall Weight 21oz Matte Black Includes: SBM4 Pistol Stabilizing Brace STDT-C pistol receiver extension ERGO Flat Top SUREGRIP ERGO Mossberg 590 adapter Castle nut

Ryan, yes this fits both 12 GA and 20 GA. Have a great day!

Ryan, 12/20 Gauge Shotgun Compatible. Includes: - SBM4 Pistol Stabilizing Brace - STDT-C pistol receiver extension - ERGO Flat Top SUREGRIP - ERGO Mossberg 590 adapter - Castle nut - Adjustable nylon strap - Fits: - Mossberg 590 Shockwave 12/20 Gauge Models Only.

It'll work with either

Yes, this will work with either one. Hope this helps.