Standard Manufacturing120921831
Standard MFG SKO Shorty 18" Semi-Auto 12ga Shotgun Black - SKOSBLK$812.50
Availability: In Stock
The Standard Manufacturing SKO Mini semi-automatic 12 gauge shotgun is a compact, purpose-built platform for shooters who want serious capability in a tight package. Built on the proven SKO and SKO Shorty design and manufactured in the USA, this gas-operated semi-auto delivers reliable performance across a variety of 2¾ and 3 inch loads. It's classified as an other firearm by the ATF and holds the distinction of being the smallest firearm of its kind on the market—making it a unique option for those seeking a short, maneuverable platform without sacrificing function or firepower.
The SKO Mini's build quality reflects its design pedigree. The receiver is machined from 7075 aircraft-grade aluminum and finished with Mil-Spec hard anodize for corrosion resistance and durability. Internal components receive salt bath nitride coating for reliable operation in adverse conditions. At 7.14 pounds (without magazine), it's light enough for all-day use. The 14¾ inch barrel is 4140 steel with a threaded muzzle—accepting standard Tru-Choke thread pattern chokes, door breachers, and other accessories to adapt the gun to your mission.
Handling and control follow the AR platform ergonomic language you likely know. The ambidextrous safety, AR-style magazine release, and bolt release let you operate the SKO Mini intuitively. The polymer grip accepts most AR-pattern grips, and the composite forend comes with a factory-installed vertical grip and M-LOE slots for mounting lights, lasers, or rail systems. The SKO Mini ships with a 2-round magazine; 5 and 10-round magazine options are available separately. A bolt hold-open feature locks the bolt back after the last round, making reloading and status checks straightforward.
Whether you're running it at the range, building a specialized platform, or exploring what this compact form factor can do, the SKO Mini delivers semi-automatic 12 gauge performance in a footprint that punches above its size class.
| Caliber | 12 Gauge |
| Action | Gas-operated semi-automatic |
| Barrel Length | 14¾ inches |
| Barrel Material | 4140 steel, threaded muzzle |
| Chamber | 2¾ and 3 inch shells |
| Choke Pattern | Tru-Choke thread pattern |
| Overall Length | 27 inches |
| Weight (unloaded) | 7.14 lbs |
| Receiver Material | 7075 aircraft-grade aluminum |
| Finish | Mil-Spec hard anodized |
| Internal Components | Salt bath nitride coated |
| Magazine Capacity | 2 rounds (included); 5 and 10-round options available |
| Grip | Polymer, accepts AR-pattern grips |
| Forend | Composite with M-LOE slots and factory vertical grip |
| Safety | Ambidextrous |
| Controls | AR-style mag and bolt release |
| Origin | Made in the USA |
The SKO Mini ships with a 2-round magazine. Standard Manufacturing offers optional 5 and 10-round magazines sold separately, allowing you to configure the gun for your intended use.
Yes. The 14¾ inch barrel features a threaded muzzle with Tru-Choke thread pattern, so you can swap choke tubes and install door breacher accessories or other threaded components to suit your application.
The polymer grip accepts most AR-style grips. The composite forend includes M-LOE slots for mounting rails, and the factory vertical grip is already installed. You can customize the platform with familiar AR-pattern controls and accessories.
The SKO Mini chambers both 2¾ and 3 inch 12 gauge shells and runs reliably across a variety of loads thanks to its gas-operated system.
SKU: 120911542 • Weight: 8.25oz