Genesis Arms Gen-12 10 Round Magazine

Engineered exclusively for the GEN-12 platform, the Genesis Arms 10-Round Magazine delivers extended capacity and unmatched reliability for both training and tactical use. This proprietary magazine supports 2 ¾” and most 3” 12-gauge shells, regardless of brass type, making it the ideal solution for high-volume shooting, 3-gun competition, or defensive applications.

Whether you're running low brass birdshot or full-power slugs, this magazine keeps pace. Its design mirrors the rear-tab loading style of pistol magazines, ensuring controlled, consistent feeding under all conditions.

Key Features
Capacity: 10 Rounds

Gauge: 12 Gauge

Shell Compatibility: 2 ¾” and most 3” shells

Design: Proprietary GEN-12 Only

Loading Method: Rear-tab insert—load like a pistol mag

Construction: Robust build for reliable cycling

Compatibility: Will not fit any other AR-style 12 gauge systems.

The GEN-12 magazine does not load like an AR-style rifle magazine. Each shell must be inserted beneath the rear feed tabs—forcing shells straight down may cause damage or malfunction.