Brigade Bm-10Lr 308 12.5 Mb Sba5 Mlok Pg
The Brigade BM-10LR is a .308 Winchester AR pistol built for shooters who need full rifle-round power in a genuinely maneuverable platform. With a 12.5-inch barrel, direct impingement gas system, and SBA5 stabilizing brace, this compact rifle rounds out a truck gun, home-defense, or close-quarters hunting rig without the footprint of a full-length carbine. Whether you're running it suppressed or open, the .308 delivers rifle-grade terminal performance in a package that handles like an oversized pistol.
Built on an AR10 platform with full ambidextrous controls, the BM-10LR is engineered for fast handling and positive operation under stress. The 12-inch M-LOK rail provides clean mounting real estate for optics and accessories, while the threaded 5/8x24 muzzle accepts standard .308 suppressors or flash hiders. The 1:10 twist rate stabilizes a wide range of .308 projectiles, and the 12.5-inch barrel length balances velocity with the compact profile that makes this gun so deployable in tight spaces.
The lower and upper receivers are CNC machined from 7075-T6 aluminum billet, the barrel is 4150 CRMOV with nitride finish, and the whole rig weighs just 7.9 pounds. A B5 pistol grip and mil-spec trigger come standard, the SBA5 brace is already installed, and a 20-round PMAG LR/SR magazine is included. The 6-position adjustable buffer tube and 4.9-ounce buffer smooth recoil and allow fine-tuning to your setup and ammunition.
This isn't a gimmick—it's a serious .308 platform compressed to its practical minimum. Suppressors, optics, and modern maneuverability in a direct-impingement rifle that handles like it means business.
Key Features
- .308 Winchester chambering—full rifle-round power and proven stopping performance
- 12.5-inch 4150 CRMOV barrel with 1:10 twist, nitride finish, and 5/8x24 threading for suppressors and muzzle devices
- Direct impingement gas system tuned for reliability in a short platform
- 12-inch M-LOK rail for optics and accessories without a full-length handguard
- SBA5 stabilizing brace installed—AR pistol-legal configuration
- Full ambidextrous controls for left and right-hand operation
- 7075-T6 aluminum billet upper and lower receivers, CNC machined
- B5 pistol grip and mil-spec trigger
- 6-position adjustable buffer tube with 4.9 oz buffer for recoil management
- Includes 20-round PMAG LR/SR magazine
- Compact length: 31.5 inches collapsed, 34 inches extended; 7.9 pounds loaded
Specifications
| Caliber | .308 Winchester |
| Barrel Length | 12.5 inches |
| Barrel Material | 4150 CRMOV, nitride finish |
| Twist Rate | 1:10 |
| Muzzle Threading | 5/8x24 |
| Platform | AR10 |
| Gas System | Direct impingement |
| Upper/Lower Material | 7075-T6 aluminum billet, CNC machined |
| Receiver Rail | 12-inch M-LOK |
| Rail Diameter | 1.5 inches |
| Stabilizing Brace | SBA5 |
| Grip | B5 pistol grip |
| Trigger | Mil-spec |
| Buffer Tube | 6-position adjustable |
| Buffer Weight | 4.9 oz |
| Included Magazine | 20-round PMAG LR/SR |
| Length (Collapsed) | 31.5 inches |
| Length (Extended) | 34 inches |
| Weight | 7.9 pounds |
| Controls | Full ambidextrous |
Frequently Asked Questions
Is the Brigade BM-10LR suitable for hunting?
Yes. The .308 Winchester is a proven hunting round, and the 12.5-inch barrel with 1:10 twist delivers ballistically sound velocity for medium to large game within typical close-quarters ranges. The short platform is also easy to maneuver in thick cover and from vehicle or building entries.
Can I use a suppressor on the BM-10LR?
Yes. The barrel is threaded 5/8x24, the standard quick-detach suppressor pitch for .308 rifles. Pairing a suppressor with this short barrel is a popular setup for noise reduction and recoil control.
What magazine does it use, and how many rounds?
The BM-10LR ships with a 20-round PMAG LR/SR (long-range/short-range) magazine. It is compatible with standard AR10 magazines.
What's the total length and weight of this .308 AR pistol?
With the SBA5 brace collapsed, the rifle measures 31.5 inches. Extended, it reaches 34 inches. The complete assembled rifle weighs 7.9 pounds, making it compact and highly maneuverable for vehicle, home-defense, or truck-gun duty.

