UTG Pro Super Slim SD M-LOK Free Float Handguard, 356 mm

• Free-float design: By isolating the handguard from barrel contact, this design helps preserve barrel harmonics and supports more consistent accuracy when the rifle is used with slings, bipods, or barricade pressure.
• Suppressor-ready inner diameter: The 1.67" inner diameter gives clearance for compatible suppressors to sit within the handguard, making it a practical choice for compact suppressed AR15 builds.
• M-LOK modularity: With 49 M-LOK slots across seven faces, the handguard provides flexible mounting space for lights, grips, sling points, and other accessories without adding unnecessary bulk.
• Continuous top rail: The 35-slot Picatinny rail sits flush with the upper receiver, giving a stable platform for sights and accessories while preserving a clean, uninterrupted mounting surface.
• U.S.-made 6061-T6 aluminum construction: Precision-machined aluminum keeps the handguard strong yet manageable in weight, while the hard-coat anodized finish adds surface durability for regular field and range use.

About the UTG Accessories Series

UTG Accessories covers a broad part of the Leapers catalog, spanning both firearm components and optics-related equipment for hunting and shooting sports. Within that range, the series includes practical support items such as scope accessories alongside more substantial rifle components, including UTG PRO handguards and rail sections. This gives the series a clear role in the lineup: it is built around functional upgrades that improve how a rifle is configured, carried, and used rather than focusing on one product type alone.

In handguards, the series emphasizes modular mounting systems, straightforward installation concepts, and durable materials suited to regular use. The UTG PRO segment in particular is associated with U.S.-made components and designs intended for shooters who want dependable fit, accessory compatibility, and practical ergonomics. Across the wider accessories family, the common thread is utility: products are designed to help shooters tailor rifles and optics setups for range work, hunting, or general sporting use. That makes the series especially relevant for AR-platform owners looking for components that combine modularity, solid construction, and compatibility with common shooting accessories.

About the UTG Pro Super Slim SD M-LOK Free Float Handguard, 356 mm

The UTG Pro Super Slim SD M-LOK Free Float Handguard, 356 mm is a 14" AR15 handguard built for shooters who want a long support-hand surface, broad accessory mounting space, and room for a suppressor-compatible setup. Its defining feature is the 1.67" inner diameter, which allows compatible suppressors to fit within the handguard envelope. In practice, that makes this model well suited to modern AR15 builds where a compact, streamlined front end is preferred over a wider external profile.

The handguard is precision machined from 6061-T6 aluminum and finished in a matte black hard-coat anodization, balancing rigidity with manageable weight. The octagonal profile and grooved exterior improve grip and handling without making the rifle feel overly bulky, which matters when the support hand is extended far forward for control. With 49 M-LOK slots across seven slot tracks, there is ample room for lights, sling hardware, hand stops, and other mission-specific accessories. A full-length 35-slot top Picatinny rail remains flush and continuous with the upper receiver, helping maintain consistent alignment for front sights or other rail-mounted equipment.

Mechanical details are equally practical. Integral anti-rotation tabs help align the handguard with the upper receiver and reduce unwanted movement or flex under load. The design is compatible with standard mil-spec forged AR15 upper receivers and accommodates barrel diameters up to 1.05" at the patented barrel nut. For shooters building a suppressed rifle with a slim exterior, this model combines free-float accuracy benefits, modularity, and a hand-filling but controlled shape.

About UTG

UTG is a brand of Leapers, Inc., a company founded in Michigan in 1992 and headquartered in Livonia, Michigan. Leapers develops and manufactures optics and accessories for hunting and shooting sports, with a catalog that includes riflescopes, mounts, scope rings, bipods, and firearm accessories. The company began with a compact 4×28 scope as its first product and later expanded into a much broader range of shooting equipment.

A key step for this product category came in 2009, when Leapers introduced the UTG PRO line of U.S.-made products. That matters here because UTG PRO components are positioned around domestic manufacturing and practical rifle upgrades such as handguards and mounting solutions. Leapers further expanded its optics development capability by establishing a research and manufacturing center in Taiwan in 2018, and it introduced the premium INTEGRIX optics brand in 2022. In the shooting accessories market, UTG is best known for offering functional, application-focused products across both rifle hardware and optics support equipment.

Main Features

• Manufacturer: UTG
• Series: UTG Accessories
• Made in: USA
• Compatible with: Rifles
• Length: 358.00 mm
• Height: 56.00 mm
• Weight: 484.00 g
• Material: Aluminium
• Modular system: M-LOK®
• Inner diameter: 1.67"
• M-LOK slots: 49 total
• Top Picatinny slots: 35
• Compatible platform: AR15
• Suppressor dedicated: Yes
• Finish: Matte Black Hard Coat Anodization
• Construction: 6061-T6 Aluminum

Warranty

UTG states a 10-year warranty for this product. That period suits a hard-use rifle component intended for regular installation, accessory mounting, and field or range use.

In the Box

• M-LOK® Picatinny rail section
• QD sling swivel adaptor
• Installation hardware
• Barrel nut wrench