Battle Arms Development AR-15 4" Workhorse M-LOK Handguard - Black Anodized

Battle Arms Development AR-15 4″ Workhorse M-LOK Handguard – Black Anodized

The Battle Arms Development AR-15 4″ WORKHORSE M-LOK Handguard is the perfect solution for builders and shooters seeking a compact, lightweight, and durable option for their short-barreled AR-15 platform. Designed with both form and function in mind, this handguard features a streamlined profile with skeletonized cutouts where M-LOK slots are not utilized, significantly reducing unnecessary weight without compromising strength or rigidity.

Engineered to meet the needs of today’s MIL-SPEC carbine builds, the WORKHORSE series is optimized for shooters who demand reliability, simplicity, and customization. The integrated M-LOK slots at the 3, 6, and 9 o’clock positions provide ample mounting space for lights, grips, or other essential accessories. At the top, a 1913 Picatinny rail spans the full 12 o’clock position for optics or backup iron sight mounting. This rail is precision notch-cut to align seamlessly with most upper receivers while reducing overall mass for improved handling.

With a compact 4″ length, this handguard is ideal for AR-15 pistols, PDW-style builds, or any short barrel configuration where minimal rail coverage is preferred. The internal diameter of 1.36″ offers compatibility with a wide range of low-profile gas blocks and muzzle devices.

The Battle Arms Development WORKHORSE handguard includes a durable barrel nut and all necessary mounting hardware for a secure installation. Built from high-quality materials and finished in a corrosion-resistant black anodizing, this handguard is 100% American-made and battle-proven.

Specifications:

• Length: 4″
• Finish: Black Anodized
• Material: Aircraft Grade Aluminum
• Internal Diameter: 1.36″
• Mounting System: M-LOK at 3, 6, and 9 o’clock
• Top Rail: 1913 MIL-SPEC Picatinny (Notch Cut)
• Includes: Barrel Nut and Mounting Hardware

Installation Torque Recommendations:

• Barrel Nut: 30–45 ft-lbs
• Mounting Screws: 10–15 in-lbs

If you are new to building an AR-15 or have any questions about the Battle Arms Development AR-15 4″ Workhorse M-LOK Handguard, we are always here to help!