Brigade Bm-10Lr 308 12.5 Fde Sba5 Mlok Pg

The Brigade BM-10LR is a .308 Winchester AR pistol built for shooters who need serious stopping power in a maneuverable, compact package. With its 12.5-inch barrel and SBA5 stabilizing brace, this direct-impingement platform delivers full rifle-caliber performance in a form factor that excels in tight spaces, vehicle use, and rapid-response scenarios. Whether you're configuring a truck gun, home-defense rig, or suppressed build, the BM-10LR gives you the ballistic authority of a .308 without the length of a traditional rifle.

Built from 7075-T6 aluminum billet with a 4150 CRMOV barrel (1:10 twist, nitride-finished), this AR10-platform pistol is purpose-engineered for durability and control. The 12.5-inch barrel strikes a balance—it preserves velocity better than shorter .308 pistols while remaining genuinely compact. Full ambidextrous controls, a mil-spec trigger, and a 12-inch M-LOK rail give you flexibility to mount optics, lights, and accessories exactly how you shoot. The threaded 5/8x24 muzzle is ready for suppressors or flash devices.

At 7.9 pounds, the BM-10LR is lightweight without feeling flimsy. The 6-position adjustable buffer tube and 4.9-ounce buffer are tuned for the .308 round, and the 22 P-grip provides a natural, controlable hold. Collapsed, it measures 31.5 inches; extended, 34 inches—size that matters when you're moving through vehicles or confined spaces. Pair it with the included 20-round PMAG LR/SR magazine, and you've got a seriously capable close-quarters platform.

This isn't a novelty build or compromise rifle. It's engineered for shooters who understand that .308 ballistics in a pistol-length AR means real power, real velocity, and real utility when traditional rifles won't fit the mission.

Key Features

• 12.5-inch 4150 CRMOV barrel (1:10 twist, nitride-finished) optimized for .308 velocity and accuracy
• SBA5 stabilizing brace for control and versatility
• Direct impingement gas system with proven reliability and shootability
• Full ambidextrous controls—charging handle, safety, magazine release
• 12-inch M-LOK rail for mounting optics, lights, and accessories
• Threaded 5/8x24 muzzle for suppressors and muzzle devices
• 7075-T6 aluminum billet upper and lower for durability and weight savings
• Mil-spec trigger for predictable, crisp operation
• 6-position adjustable buffer tube for tuning and modularity

Specifications

Frequently Asked Questions

What's the barrel length and twist rate on the BM-10LR?

The BM-10LR features a 12.5-inch barrel with a 1:10 twist rate, made from 4150 CRMOV steel and finished in nitride. That length and twist are optimized for .308 velocity and accuracy in a compact platform.

Is the BM-10LR compatible with standard AR optics and accessories?

Yes. The 12-inch M-LOK rail accepts any M-LOK-compatible optic, light, or foregrip. The threaded 5/8x24 muzzle works with standard suppressors and muzzle devices. It's built on an AR10 platform with full ambidextrous controls, so you can mount and configure it like any modern AR.

What magazine does it use, and how many rounds?

The BM-10LR comes with one 20-round PMAG LR/SR magazine and is compatible with .308 AR10-pattern magazines of the same type.

How much does the BM-10LR weigh, and what are the dimensions?

The rifle weighs 7.9 pounds. Collapsed, it measures 31.5 inches; when fully extended, 34 inches. That compact footprint makes it suited for vehicles, tight spaces, and rapid-response use.