Battle Arms Development AR-15 6.7″ Workhorse M-LOK Handguard | Black Anodized
The Battle Arms Development AR-15 6.7″ Workhorse M-LOK Handguard is a compact lightweight free float handguard engineered for AR pistols, short-barreled rifles, and compact AR-15 builds requiring excellent maneuverability without sacrificing modularity or durability. Built around Battle Arms Development’s WORKHORSE design philosophy, this handguard delivers premium machining, lightweight handling, and rugged free float performance in a highly versatile compact platform.
Precision machined from aircraft-grade aluminum and finished in durable black hardcoat anodizing, the Battle Arms Development 6.7″ Workhorse Handguard offers exceptional strength while maintaining a slim ergonomic profile optimized for fast handling and reduced front-end weight. Shooters frequently search for short M-LOK handguards for AR pistol and SBR builds because lightweight compact rails improve balance, target transitions, and overall control in close-quarters or vehicle-based applications.
The 6.7-inch configuration is ideal for shorter barrel lengths and pistol-length gas system setups while still providing ample space for modern accessory mounting. This makes the Battle Arms Development Workhorse Handguard especially popular among shooters running weapon lights, hand stops, suppressor-ready configurations, and compact defensive rifle setups where rail efficiency and maneuverability are critical.
Integrated M-LOK attachment slots at the 3, 6, and 9 o’clock positions provide direct mounting capability for modern accessories without the excess bulk and weight associated with legacy quad rail systems. Aggressive skeletonized machining cuts further reduce unnecessary mass while maintaining excellent structural rigidity and airflow during extended firing sessions.
The full-length MIL-STD-1913 Picatinny top rail provides a stable mounting platform for optics, backup iron sights, and laser aiming devices while maintaining proper alignment with compatible upper receivers. Battle Arms Development’s precision notch-cut top rail design helps reduce additional weight while preserving strength and maintaining the streamlined aesthetic of the WORKHORSE lineup.
With an internal diameter of approximately 1.36″, the Battle Arms Development AR-15 6.7″ Workhorse M-LOK Handguard accommodates most low-profile gas blocks and many suppressor-ready barrel configurations commonly found on compact AR-15 builds. The included barrel nut and mounting hardware ensure secure installation and long-term reliability under hard use conditions.
Designed, manufactured, and tested in the USA, the Battle Arms Development Workhorse series delivers premium lightweight free float performance for shooters building modern AR-15 pistols, compact carbines, and short-barreled rifle platforms.
Key Features:
- 6.7″ compact free float AR-15 handguard
- Precision machined from aircraft-grade aluminum
- Durable black hardcoat anodized finish
- M-LOK mounting slots at 3, 6, and 9 o’clock positions
- Lightweight slim profile design
- Skeletonized machining cuts reduce unnecessary weight
- Continuous MIL-STD-1913 Picatinny top rail
- Precision notch-cut top rail profile
- Compatible with most low-profile gas blocks
- Internal diameter approximately 1.36″
- Ideal for AR pistols and compact SBR builds
- Includes barrel nut and mounting hardware
- Made in the USA
Installation Torque Recommendations:
- Barrel Nut: 30–45 ft-lbs
- Mounting Screws: 10–15 in-lbs
Product Information
| Manufacturer | Battlearms Development |
|---|---|
| Handguard | 6.7" M-LOK |
| Platform | AR15, AR9 |
| Series | Workhorse |
| Length | 6.7" |
| Color | Black |
| Material | 6061-T6 Aluminum |
| Weight | 4.5oz |
| Compatibility | Standard AR15 components |
| Made in USA | Yes |
| Other | Hardware Mounting Weight – 1.9oz |
















