JTS M12AR | 12 Gauge Semi-Auto | 18.7 in Barrel

The JTS M12AR is an AR-style semi-automatic 12-gauge shotgun equipped with an 18.7-inch chrome-lined barrel and a 4-position adjustable gas system for tuning to different loads. It chambers both 2 3/4″ and 3″ shells and accepts Rem choke tubes. The shotgun is fitted with an aluminum forend featuring M-LOK slots, removable front and rear sights, and a top Picatinny rail for optics or accessories. The package includes two 5-round detachable magazines and a fixed AR-style synthetic stock.

Common applications for this platform include recreational range shooting and practical/tactical training or competition-style drills where AR ergonomics and modularity are preferred.

Product Specifications

• The gauge is 12 Gauge.
• The action is Semi-Auto.
• The barrel measures 18.7 inches and is chrome lined.
• The barrel material/description is 4140 chrome-lined steel.
• The shotgun chambers 2 3/4″ and 3″ shells.
• The forend is aluminum with M-LOK slots.
• The gas system is a 4-position adjustable design for load tuning.
• The sights are removable front and rear and it includes a top Picatinny rail.
• The stock is black synthetic in a fixed AR-style configuration.
• The product includes two 5-round magazines.
• The shotgun accepts Rem choke tubes.
• The overall length is 37.99 inches.
• The weight is listed as 12.7 lbs.
• UPC: 810058880055

Built to combine AR-style ergonomics with a 12-gauge platform, the M12AR offers modular accessory mounting via M-LOK and Picatinny interfaces, along with an adjustable gas system to handle a range of common 2 3/4″ and 3″ 12-gauge loads. Its included magazines and modular forend make it well suited for shooters who value straightforward controls, quick accessory fitment, and adaptability on the range or during training.

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