Jianshe Arsenal M12AK 12 Gauge Semi-Auto AK-Pattern Shotgun, 18.7 Inch Barrel, 3 Inch Chamber, Cylinder Choke, 10+1 Capacity, Matte Black
The Jianshe Arsenal M12AK is an AK-pattern, gas-operated 12 gauge shotgun built on a stamped and riveted receiver with familiar AK controls. It features an 18.7 inch smoothbore barrel with a cylinder choke, a 3 inch chamber that also accepts 2-3/4 inch shells, and a stated 10+1 capacity with detachable box magazines. An adjustable gas regulator at the gas block and a short Picatinny rail segment on the receiver cover round out a feature set aimed at practical versatility.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Minimal markings from previous handling and use. Please refer to the photos for a closer look at surfaces and markings.
What's Included
- Owner's manual
- Four 10-round polymer magazines with metal feed lips (marked "MADE IN CHINA")
- Two 5-round polymer magazines with metal feed lips (marked "MADE IN CHINA")
This M12AK follows the AK pattern with a stamped and riveted steel receiver, paddle-style magazine release, and right-side safety/selector. The matte black finish and black polymer furniture include a fixed stock, ribbed polymer pistol grip, and ribbed polymer fore-end. Length of pull measures 14.0 inches, providing a full-size fit.
The gas-operated, semi-automatic action uses an adjustable gas regulator at the gas block. Its 18.7 inch smoothbore barrel is fitted with a cylinder choke. The shotgun is chambered for both 2-3/4 inch and 3 inch 12 gauge shells, supporting the versatile 3 inch chamber specification requested. Stated capacity is 10+1 when using detachable box magazines.
Sighting is handled by iron sights with a protected front post and a tangent rear leaf. The receiver cover includes a short Picatinny rail segment for mounting as needed. Controls and layout will be familiar to users accustomed to AK-style platforms.
Manufactured by Chongqing Jianshe Industry (Group) Co., Ltd. in China, this shotgun bears the JTS shield logo and import markings from JTS, Katy, Texas, USA. Markings include CHONGQING JIANSHE INDUSTRY (GROUP) CO., LTD. CHINA and JTS identifiers.




