AR-15 Free Float M-LOK Handguard 15 inch

The AR-15 free float handguard is a core component for building a modern, accurate rifle. This 15-inch M-LOK model is for the shooter who demands a rigid platform for optics, lights, and grips without adding unnecessary weight. Its design directly interfaces with the upper receiver to eliminate point-of-impact shift from sling pressure or bipod use.

Specifications

• Length: 15 inches
• Attachment System: True free-float, bolts directly to proprietary barrel nut
• Rail System: M-LOK slots at 3, 6, and 9 o’clock positions
• Material: 6061-T6 Aluminum
• Finish: Type III Hardcoat Anodized, Matte Black
• Inner Diameter: 1.5 inches (accommodates most suppressor mounts and gas blocks)
• Weight: Approximately 11 ounces

Why Choose the AR-15 Free Float M-LOK Handguard 15 inch

The primary advantage of a free float handguard is consistency. By decoupling the handguard from the barrel, any force you apply—whether from a tight sling, a bipod, or a barricade—does not transfer to the barrel to deflect your shot. This handguard provides a stable, repeatable mounting surface for your laser, white light, or vertical grip, ensuring your zero stays true. The 15-inch length offers optimal real estate for a forward grip and a modern shooting stance while keeping the overall build lightweight and balanced.

The M-LOK attachment system offers a slim, snag-free profile compared to bulkier rail sections. You can mount accessories directly into the slots, creating a seamless interface. The 1.5-inch internal diameter is a critical spec for builders planning to run a suppressor or a low-profile gas block underneath; it provides ample clearance for installation and mitigates heat mirage. The hardcoat anodized finish is durable enough for hard use and will match most mil-spec upper receivers.

What’s in the Box

• One 15-inch M-LOK Free Float Handguard
• Proprietary Barrel Nut and Anti-Rotation Tab
• Installation Hardware (wrench, screws)
• M-LOK Hardware Kit (T-nuts and screws)

Frequently Asked Questions

Q: Is a special barrel nut required for installation?
A: Yes. This handguard kit includes its own proprietary barrel nut, which must be installed and torqued to spec. It is not compatible with standard mil-spec Delta rings or barrel nuts.

Q: Will this handguard fit over my low-profile gas block?
A: With an inner diameter of 1.5 inches, it will clear most commercially available low-profile gas blocks. Always verify the dimensions of your specific gas block before purchasing to ensure proper clearance.

Q: Can I attach a Picatinny rail section for my optic?
A: Yes. You can attach Picatinny rail segments directly to the M-LOK slots at the 12 o’clock position using M-LOK to Picatinny adapter pieces, which are sold separately.