Brigade Mk-15 5.56 10.5 Blk Mlok

The Brigade Mk-15 5.56 is a modern AR-15 pistol built for shooters who want a compact, controllable platform without the traditional buffer tube. This 10.5-inch barreled pistol combines a short-stroke gas piston system with all the familiar AR controls you already know, making it a natural fit whether you're setting up a truck gun, building a specialized .223 Rem/5.56 NATO pistol, or experimenting with a piston-driven alternative to direct-impingement designs. The Mk-15 strips away complexity — no buffer spring, no buffer tube — while keeping the modularity and ergonomics that make AR platforms so popular.

Built in the USA from 7075-T6 billet aluminum, the upper and lower receivers are CNC machined for precision and durability. The 10.5-inch 4150 CMV nitride barrel sports a 1:7 twist and comes threaded 1/2 x 28 with a 3-prong muzzle device already attached. The forend features a 9-inch M-LOK rail that leaves plenty of real estate for lights, lasers, or backup accessories, while the rear 1913 Picatinny rail accepts standard optic mounts. An ambi takedown lever and mil-spec trigger come standard, and you get flip-up iron sights and a 30-round magazine in the box — everything you need to get downrange immediately.

At 7 pounds total, the Mk-15 handles quick and fast without feeling like a toy. The non-reciprocating side charging handle means your optic stays protected and your cheek weld stays consistent. Whether you're running suppressed, doing close-quarters drills, or just want a short-barreled 5.56 pistol that works like an AR, the Brigade Mk-15 delivers the modularity and control you expect from the platform without unnecessary weight or complexity.

Key Features

• Short-stroke gas piston system with bufferless operation for simplified design and fast shooting
• 10.5-inch 4150 CMV nitride barrel with 1:7 twist and 1/2 x 28 threading
• 7075-T6 billet aluminum upper and lower receivers, CNC machined for precision
• 9-inch M-LOK forend rail for mounting lights, lasers, and other accessories
• Rear 1913 Picatinny rail for standard optic mounts
• Non-reciprocating side charging handle keeps optics clear and cheek weld uninterrupted
• Ambi takedown lever for left and right-handed shooters
• Flip-up iron sights and 30-round magazine included
• Mil-spec trigger
• USA made with lifetime warranty
• 7-pound total weight

Specifications

Frequently Asked Questions

What's included with the Brigade Mk-15?

The Mk-15 ships with flip-up iron sights, a 30-round magazine, and a 3-prong muzzle device already installed on the barrel. Everything is ready to mount an optic and hit the range or field.

Is the Mk-15 compatible with standard AR-15 controls and parts?

Yes — the Brigade Mk-15 uses familiar AR-15 pattern controls, so you can integrate standard AR accessories, triggers, and grip configurations. The short-stroke piston system operates independently of the trigger group, so most mil-spec components work without modification.

Can I suppress a Brigade Mk-15?

The 1/2 x 28 threaded barrel is compatible with standard 5.56 suppressors. The short-stroke gas piston design typically runs efficiently with a suppressor, though your muzzle device and suppressor mounting method will depend on your specific can.

What makes the short-stroke piston system different from a standard AR?

Instead of routing gases back into the receiver like a direct-impingement AR, the Mk-15's short-stroke piston cycles independently. The bufferless design eliminates the buffer tube and spring, resulting in a more compact platform and different recoil impulse characteristics. It's a cleaner system that some shooters prefer, especially in compact builds.