Mossberg 590 A1 +2 Mag Extension
For Mossberg 590 and 590 A1 Shotguns with 5 Shot Magazine Tube (6 shot total capacity).
For 12 Gauge
CNC milled from solid steel
Features a Black Nitride finish for superior rust protection and increased surface hardness.
3 position front sling mount
Extra Power 600,000 Cycle Count Spring Included
Trimming of magazine spring is required for proper fitting and performance.
Type 3 Mossberg Specific NoJam Follower Included. Could be green or orange.
Made In Canada