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

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Upgrade Your AR-15 with the Radical Firearms Gen 3 M-LOK Handguard

Built for precision and durability, the Radical Firearms Gen 3 M-LOK Handguard (15″) delivers a rock-solid platform for optics, grips, and accessories. Its lightweight aluminum construction and M-LOK compatibility make it ideal for tactical builds, competition rifles, or range work. This Primary Arms exclusive balances affordability with proven performance—no gimmicks, just functional design. Ships ready to install across the U.S.

Key Specifications

• Material: 6061-T6 aluminum with Type III hardcoat anodizing
• Length: 15 inches (measured from receiver end)
• Weight: 11.2 oz (unloaded)
• Compatibility: Standard AR-15/M16 platforms (fits most mil-spec uppers)
• Attachment System: M-LOK slots at 3, 6, and 9 o’clock positions
• Finish: Matte black, corrosion-resistant

Feature Breakdown

The Gen 3 handguard’s barrel nut design eliminates timing issues during installation, a common frustration with older models. Its internal diameter accommodates most low-profile gas blocks while providing ample heat dissipation. The flared end cap reduces snag points and improves grip transitions—critical for rapid target acquisition or close-quarters drills.

M-LOK’s tool-free attachment beats Picatinny for weight savings, letting you mount lights, lasers, or bipods without bulky rails. The 15″ length optimizes balance for mid-length or rifle-gas systems, freeing up rail space without unnecessary forward weight. Machined anti-rotation tabs lock the handguard securely to your upper receiver, even under sustained fire.

Radical Firearms’ anodizing process exceeds MIL-A-8625 standards, resisting wear from slings, gloves, or vehicle racks. Unlike cheaper alternatives, the Gen 3’s T-slot interior maintains rigidity across its full length, preventing flex during barricade work or sling-supported shots. The smooth exterior won’t chew up gloves during extended sessions.

This handguard ships with all necessary hardware: barrel nut, wrench flats, and mounting screws. No proprietary tools required—just a standard armorer’s wrench and torque wrench (not included). The slim profile fits most shooters’ hands comfortably, whether running a C-clamp grip or traditional forearm position.

Compatibility Notes

Designed for AR-15 platforms with:

• Mil-spec upper receivers (commercial-spec may require shims)
• Barrel lengths 16″ or longer (14.5″ pinned/welded barrels work with some gas systems)
• Low-profile gas blocks (avoid bulky adjustable models unless confirmed to fit)

Installation Overview

Remove your existing handguard and gas block (if necessary). Slide the new barrel nut onto the barrel threads, torque to manufacturer specs (typically 35-65 ft-lbs), and align the receiver tabs. Secure the handguard body with provided screws, then reinstall your gas system. Total install time averages 20-30 minutes with basic tools.

FAQ

Q: Does this work with a .750″ or .625″ journal gas block?
A: Fits both—clearance depends on your gas block’s height, not diameter.

Q: Can I attach a QD sling mount directly?
A: Yes, any M-LOK compatible QD socket will work at the 3 or 9 o’clock positions.

Q: Is the interior wide enough for a suppressor wrap?
A: Yes, but measure your wrap’s thickness—some ultra-insulated designs may contact the handguard.

Q: Will this fit a billet upper?
A: Most billet uppers work if they follow mil-spec dimensions around the barrel nut area.

Q: Does it include a heat shield?
A> No—modern aluminum handguards dissipate heat effectively without added shielding.

Warranty & Shipping

Radical Firearms backs this handguard with a limited lifetime warranty against manufacturing defects. Ships via USPS or UPS within 3 business days (excluding federal holidays). No signature required for delivery unless specified at checkout.

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