SRM Arms M1216 12 Gauge Bullpup Semi-Auto Shotgun, 18.5 in Threaded Barrel, 16+1 Capacity, Cylinder Bore
The SRM Arms M1216 stands out as a compact, American-made bullpup semi-automatic shotgun built around a detachable, manually indexed quad-tube rotary magazine system. It offers 16+1 capacity, a roller-delayed blowback action, and a full-length Picatinny top rail, all in a package with an 18.5 inch threaded barrel and 2 3/4 or 3 inch chambering.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: There are visible scratches on the body and handguard, with signs of handling. Scattered scratches and blemishes are present.
What’s Included
- 2x 16rd mags
- SRM Arms 1216 detachable quad-tube rotary magazines (factory type), as shown
This M1216 uses a detachable, manually indexed quad-tube rotary magazine system that holds 16 rounds, delivering 16+1 total capacity. The action is roller-delayed blowback, providing smooth cycling with 12 gauge loads.
The shotgun’s bullpup layout keeps the overall length around 33.75 inches while maintaining an 18.5 inch barrel. It features a steel barrel with a cylinder bore and a threaded muzzle (7/8-24), plus a fluted chamber. It is chambered for both 2 3/4 and 3 inch shells.
Construction is robust with a billet aluminum receiver and a polymer lower/stock assembly. The stock is integral with a rubber buttpad and sling slot, and the grip is a textured polymer pistol grip with finger grooves. Length of pull is approximately 13.25 inches, and weight is about 7.75 pounds.
Controls and configuration include a manual safety and a right-side charging handle with a round knob. The design supports ambidextrous ejection/configuration with push-pin takedown for maintenance. A full-length Picatinny top rail and an additional forward accessory rail provide mounting space for accessories.