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Upgrade Your AR-15 with the Gen 3 M-LOK Handguard
Precision shooters and tactical builders demand reliability without compromise. The Firearms Gen 3 M-LOK Handguard delivers a rigid, lightweight platform for optics, grips, and accessories while maintaining full barrel clearance. Machined from 6061-T6 aluminum and featuring a sleek anodized finish, this 15″ handguard balances durability with streamlined ergonomics. Compatible with most AR-15 platforms, it ships ready for installation across all 50 states.
Key Specifications
- Material: 6061-T6 aluminum with Type III hardcoat anodizing
- Length: 15 inches (measured from receiver end)
- Weight: 12.8 oz (bare handguard)
- M-LOK slots: 8 positions (3/6/9 o’clock)
- Inner diameter: 1.72″ (clears most suppressor mounts)
- Barrel nut: Steel, anti-rotation design (included)
Feature Breakdown
The Gen 3’s monolithic top rail maintains zero for backup iron sights or red dots, while the flared M-LOK slots allow tool-free accessory adjustments. Unlike bulkier quad-rail systems, the low-profile design reduces snag points during transitions without sacrificing mounting real estate. Heat dissipation grooves along the interior mitigate barrel temperature transfer during sustained fire.
Installation requires no specialized gunsmithing tools – the included barrel nut wrench and shim kit accommodate common armorer’s wrenches. Clocking the handguard to your preferred position is simplified by the indexed anti-rotation tabs. All hardware is Grade 8 certified, with thread locker pre-applied to critical fasteners.
For builders prioritizing weight distribution, the handguard’s center of mass sits closer to the receiver than competing models. This improves balance when running suppressors or night vision setups. The textured surface provides positive grip with gloves, though aggressive stippling won’t wear down clothing like cheese graters.
Every unit undergoes magnetic particle inspection for stress fractures before shipping. While designed for standard carbine-length gas systems, the internal clearance accommodates adjustable piston kits with minor fitting. The anodizing resists solvents and CLP breakdown better than cerakote in long-term wear testing.
Compatibility Notes
- Fits MIL-SPEC AR-15 upper receivers (not DPMS pattern)
- Clears low-profile gas blocks (0.750″ journal recommended)
- Requires removal of delta ring assembly on factory barrels
- Not compatible with front sight tower gas blocks
Installation Overview
Remove existing handguard components and barrel nut. Install the included steel barrel nut using 35-40 ft/lbs torque, clocking to align with upper receiver index marks. Slide handguard onto barrel nut and secure with provided bolts. Final torque on mounting hardware should not exceed 15 in/lbs. Test for free float by ensuring no contact between handguard and gas block.
Frequently Asked Questions
Q: Does this work with a .308 AR platform?
A: No, this model is designed specifically for AR-15/5.56 platforms.
Q: Will a suppressor fit inside the handguard?
A: Most 1.5″ diameter suppressors will clear, but check your specific model’s dimensions.
Q: Is the barrel nut compatible with other handguards?
A: No, the proprietary anti-rotation system requires this handguard’s matching nut.
Q: Can I cerakote over the anodizing?
A: Yes, but proper surface prep is required for adhesion.
Q: What’s the maximum torque for M-LOK accessories?
A: 25 in/lbs for aluminum components, 35 in/lbs for steel.
Warranty & Shipping
Lifetime warranty against manufacturing defects. Does not cover improper installation or modifications. Ships via USPS Priority or FedEx Ground with tracking provided within 24 hours of order. All shipments require adult signature confirmation per federal regulations.
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