Mossberg 590RM Chisel: 11.5-Inch Pump SBS With a Folding Stock

The short version: Mossberg and Chisel Machining have built the 590RM Chisel, an 11.5-inch short-barreled pump shotgun that runs a 10-round detachable magazine and a stock that folds.

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The 590RM is Mossberg's magazine-fed pump with a pistol grip and a rotary safety. This version adds a folding stock mount from Chisel Machining, a California company that makes firearm components and accessories in the USA. Folded, the gun gets shorter for storage and transport. Deployed, the Mossberg-designed stock adjusts to eight positions, from 12.5 to 16 inches.

Mossberg also adds parts that owners usually buy later. You get a Magpul MOE+ grip, a flat trigger, a longer bolt release, a top Picatinny rail for an optic and QD cups on both sides, with the front cup on the magazine cap. The receiver is Flat Dark Earth Cerakote, which Mossberg says helps it resist corrosion.

The article is a sponsored feature and doesn't give a price. This is also a short-barreled shotgun, so check federal, state and local rules before you plan a purchase.

Key specs

• Action: pump, pistol grip, ambidextrous rotary safety
• Barrel: 11.5"
• Magazine: 10-round detachable
• Stock: Chisel Machining folding mount; 8 length-of-pull positions (12.5" to 16.0"); interchangeable recoil pad
• Grip: Magpul MOE+
• Extras: flat-profile trigger, top Picatinny rail, elongated bolt release, 2-sided QD cups
• Choke: Accu-Choke system, which Mossberg says allows adding a suppressor
• Finish: Flat Dark Earth Cerakote receiver; E-coated inside and out

Summary by GunWinner based on reporting by Athlon Outdoors. Deal links are affiliate links; GunWinner may earn a commission. Prices change quickly, so confirm at checkout.