UTG Pro Arwen M-LOK Free Float Handguard, 356 mm

• Free-float design: By isolating the handguard from barrel pressure, the design helps preserve barrel harmonics and supports more consistent accuracy when shooting from barricades, slings or supported positions.
• M-LOK mounting layout: Multiple M-LOK slots across the handguard let the rifle carry only the accessories needed, keeping the front end cleaner and easier to handle than a full quad-rail setup.
• Continuous top Picatinny rail: The full-length rail runs flush with the upper receiver, giving a stable platform for sights, optics and night-vision or backup sight combinations while maintaining alignment.
• 6061-T6 aluminum construction: The aluminum body keeps weight to 343.00 g while still providing the rigidity expected from a hard-use AR handguard for regular range use or field carry.
• Anti-rotation and simple barrel nut system: Integral anti-rotation tabs and the patented steel barrel nut are designed to keep the handguard aligned and simplify installation by avoiding gas-tube timing on the barrel nut.

About the UTG Accessories Series

UTG Accessories covers a broad part of the Leapers catalog, bringing together practical components for rifles as well as supporting gear for optics and shooting setups. Within that range, the line includes firearm parts, mounting solutions and smaller optical accessories, giving the brand a consistent design language across different product types. The emphasis is generally on durable construction, straightforward installation and compatibility with common sporting-rifle platforms.

In the handguard segment, the series includes UTG PRO free-float and drop-in designs, along with rail sections and related hardware. That makes the family relevant to shooters building or updating AR-pattern rifles for range work, training and general-purpose sporting use. The series is defined less by one single technology than by a practical approach: modular attachment interfaces, robust metal construction and layouts that support modern accessory placement without unnecessary bulk. For users who want a rifle configured around lights, grips, lasers or sling hardware, the UTG accessory family is built around that modular, application-driven idea.

About the UTG Pro Arwen M-LOK Free Float Handguard, 356 mm

The UTG Pro Arwen M-LOK Free Float Handguard, 356 mm is a long-format AR handguard intended for shooters who want extended support-hand placement, broad accessory mounting space and the handling benefits of a free-float setup. Its installed length of 349.00 mm gives the rifle a stretched front end that suits modern shooting positions, especially when using a more forward grip for recoil control, transitions and supported shooting.

The Arwen pattern combines an ergonomic octagonal profile with lightening cuts, so the handguard feels less bulky in the hand than older full-rail designs while still providing a rigid structure for accessories. The M-LOK layout gives room for lights, sling mounts and other add-ons without forcing unused rail space around the entire circumference. A continuous top Picatinny rail keeps sighting accessories aligned with the receiver and leaves flexibility for backup irons or forward-mounted devices.

Mechanically, this model is built from 6061-T6 aluminum with a hard-anodized finish and uses integral anti-rotation tabs to help maintain alignment with the upper receiver under use. The patented steel barrel nut system is designed to simplify installation because it does not require timing for the gas tube, which is a practical advantage for builders and armorers. With compatibility centered on standard mil-spec forged AR15 upper receivers, this UTG handguard fits well into general-purpose rifle builds where low weight, modularity and a stable free-float platform matter more than excess bulk.

About UTG

UTG is a brand of Leapers, Inc., a company founded in Michigan in 1992 and headquartered in Livonia, Michigan, United States. Leapers develops and manufactures optics and shooting accessories, with a catalog that spans riflescopes, mounts, rings, bipods and firearm components. Its first product was a compact 4x28 scope, and the company later expanded into a broader range of sporting and tactical equipment.

For this product category, an important milestone was the launch of the UTG PRO line in 2009, which marked Leapers' move into U.S.-made products aimed at shooters who wanted domestic manufacturing and more specialized rifle accessories. The company also established an optics research and manufacturing center in Taiwan in 2018 and introduced the INTEGRIX premium optics brand in 2022. In practical terms, UTG is known for combining broad platform compatibility with functional, workshop-oriented design across both optics and rifle accessories.

Main Features

• Manufacturer: UTG
• Series: UTG Accessories
• Made in: USA
• Weight: 343.00 g
• Height: 52.50 mm
• Length: 349.00 mm
• Material: Aluminium
• Accessories for: Rifles

Warranty

This product carries a 10-year warranty.

In the Box

• T15 Torx wrench
• Barrel nut for SEM Series handguards
• Barrel nut wrench for SPM/SEM Series
• Mount user's manual