Mossberg 590 A1 +1 Mag Extension Nickel
Mossberg Shockwave, 590, and 590 A1 +1 Mag Extension
CNC Milled from solid steel
Best +1 Extension for Mossberg
Perfect for the New Mossberg 590 and 590 A1 with the factory one-piece 6 shot magazine tube.
Includes extension, spring, follower, and 3 point sling plate.
Magazine tube spring must be trimmed to fit.
The best there is.
Out of stock