Sons of Liberty Gun Works L89 Rail 15.25" – AR-15 Free-Float Handguard

The Sons of Liberty Gun Works L89 Rail is a lightweight free-float handguard designed for AR-15 pattern rifles with mid-length or rifle-length gas systems. This 15.25-inch rail replaces factory handguards to provide a full-length M-LOK attachment platform, improved heat dissipation, and a slim profile that enhances handling without adding unnecessary bulk. Ideal for shooters building a versatile carbine or upgrading an existing rifle for better accessory mounting and thermal management.

Machined from 6061-T6 aluminum with a black Type III hard-anodized finish, the L89 Rail features M-LOK slots at the 3, 6, and 9 o'clock positions and a continuous Picatinny top rail for optics and backup sights. Installation requires a barrel nut wrench and armorer's wrench; the rail uses a proprietary barrel nut system. While mechanically inclined shooters can perform the installation, professional fitting is recommended to ensure proper alignment and torque specs.

• Part Type: Free-Float Handguard
• Compatible Firearms: AR-15 (mid-length and rifle-length gas systems)
• Material: 6061-T6 Aluminum
• Finish: Type III Hard Anodized Black
• Length: 15.25 inches
• Attachment System: M-LOK (3, 6, 9 o'clock), Picatinny top rail
• Installation: Professional Recommended (requires barrel nut wrench and proper torque)
• Includes: Handguard, proprietary barrel nut, mounting hardware