Description
Experience 12-gauge power in a compact AR-pattern platform. The Genesis Arms Gen-12 SBM 10.5″ is a semi-automatic shotgun designed for seamless compatibility with common AR-style components, delivering familiar controls with serious stopping authority.
Chambered for both 2¾” and 3″ shells, this model features a 10.5″ barrel, 1.375-24 muzzle threads, and a factory-installed blast can with crown muzzle device. Its proprietary short-recoil operating system is engineered to reliably manage 12-gauge pressures in a compact configuration.
The free-float M-LOK handguard offers mounting points at the 3, 6, and 9 o’clock positions, while a full-length Picatinny top rail supports optics and accessories. Built on a GEN1 DPMS .308 patterned lower, it includes a mil-spec buffer tube with 3.8 oz short carbine buffer, mil-spec AR trigger, right-side charging knob, and Hogue rubberized grip.
Key Specs
- • Caliber: 12 Gauge (2¾” & 3″ shells)
- • Barrel Length: 10.5″
- • Action: Semi-automatic, short recoil
- • Muzzle Thread: 1.375-24 with blast can / crown muzzle device
- • Handguard: Free-float M-LOK (3, 6, 9 o’clock)
- • Top Rail: Full-length Picatinny
- • Charging Handle: Right-side, non-reciprocating
- • Lower Receiver: GEN1 DPMS .308 pattern
- • Buffer System: Mil-spec tube with 3.8 oz short carbine buffer
- • Grip: Hogue rubberized
- • Trigger: Mil-spec AR
- • Capacity: 5 rounds (magazine included)
- • Includes: 5-round magazine and soft case
Classified as an Other Firearm.
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