The GEN-12 SBM Short Barrel Shotgun is a compact 12 Gauge platform featuring a 7-inch barrel, short-recoil operation, and a free-float handguard designed for accessory flexibility. Chambered for both 2¾-inch and 3-inch 12 Gauge shells, this configuration is built around a GEN1 DPMS .308-patterned lower and features a Mil-Spec buffer system, Adaptive Tactical stock, and Hogue rubberized grip.

The free-float handguard features M-LOK® attachment points at the 3, 6, and 9 o'clock positions, along with a full-length Picatinny top rail. Additional features include a right-side charging knob, 1.375-24 muzzle threading, and a Mil-Spec AR trigger.

Key Features

• 7-inch barrel with short-recoil operation
• 12 Gauge chamber compatible with 2¾-inch and 3-inch shells
• 1.375-24 muzzle threading
• Free-float handguard with M-LOK® rails at 3, 6, and 9 o'clock
• Full-length Picatinny top rail
• Right-side charging knob
• GEN1 DPMS .308-patterned lower
• Mil-Spec buffer tube with 3.8 oz .308 short carbine buffer
• Adaptive Tactical stock
• Hogue rubberized grip
• Mil-Spec AR trigger

Included with the GEN-12 SBM

• 5-round magazine
• Soft case
• Limited warranty

Important Product Information

• NFA ITEM: All applicable NFA laws and regulations apply.
• State restrictions: Not available to California. Sales are limited or restricted in New York, New Jersey, Connecticut, Massachusetts, Washington, Illinois, and the District of Columbia. Contact Proven Arms & Outfitters to verify current eligibility before ordering.
• Shipping: Additional shipping charges apply to destinations outside the lower 48 states.
• Cerakote: May add 2–3 weeks to order processing.
• Accessories shown in product images may not be included.
• Canceled orders are subject to a 30% restocking fee.

NFA NOTICE: This is an NFA item. All applicable federal, state, and local laws and regulations apply. Buyers are responsible for confirming compliance with all applicable laws before placing an order.