Radical Firearms Gen 3 M-LOK Handguard Primary Arms Exclusive – 15″

About this product

```html Radical Firearms Gen 3 M-LOK Handguard – Built for Serious Builders This 15" M-LOK handguard gives your AR-15 a lightweight, rigid platform for optics and accessories without bulk. Machined from 6061-T6 aluminum and hardcoat anodized, it withstands recoil and range use while keeping your setup streamlined. Ships to all 50 states with no restrictions. Key Specifications Material: 6061-T6 aluminum, Type III hardcoat anodized Length: 15 inches (true measured length) Weight: 11.2 oz (bare handguard) Attachment: Proprietary barrel nut system (included) Compatibility: Standard AR-15/M4 uppers (not for AR-10/LR-308) Feature Breakdown The Gen 3 handguard uses a reinforced internal skeleton design to eliminate flex during rapid fire or sling tension. Unlike cheaper extruded rails, this one is CNC-machined as a single piece for consistent rigidity across the full length. The matte black anodizing resists scratches from bipods or barricade rests. Eight M-LOK slots per side (top rail optional) let you mount lights, grips, or IR devices without needing bulky adapters. Slot spacing follows common accessory footprints, so your pressure pad or QD sling mount will align cleanly. No sharp edges – the chamfered corners won’t chew up gloves. Installation requires basic AR armorer skills: torque wrench, vise block, and anti-seize compound recommended. The included barrel nut uses a standard armorer’s wrench (not proprietary tools). Clocking the nut may require shims for perfect alignment – we include three stainless steel shims to fine-tune timing. Heat management matters with sustained fire. The handguard’s open underside and slim profile keep airflow moving, while the aluminum construction dissipates heat faster than polymer alternatives. For extreme use cases, we recommend pairing it with a quality heat shield. Compatibility Notes Fits most mil-spec AR-15 uppers (check receiver diameter if using non-standard billet models) Clearance for low-profile gas blocks (pistol-length t