Aero Precision - M5 R-ONE M-LOK Handguard .308/AR-10

Lightweight strength for your .308/AR-10 build. The Aero Precision M5 R-ONE M-LOK Handguard is machined from 6061-T6 aluminum and secured by the proprietary Aero Taper Lock Attachment System for rock-solid accuracy without excess weight. It maintains a slim, ergonomic profile while adding full-length mounting real estate and field-ready durability.

Key Features

• Aero Taper Lock Attachment System: mirrored tapered locking nuts + turnbuckle screw apply even clamping pressure to a custom barrel nut; ratcheting detent resists loosening
• Ultra-light design with full top Picatinny rail for optics/backup sights
• Integrated QD sling sockets at 3, 6, and 9 o’clock
• M-LOK® slots for direct-attach accessories
• 1.5" inside diameter; compatible with low-profile gas blocks
• All mounting hardware included (barrel nut and fasteners); uses a standard armorer’s wrench
• Made in the USA

Compatibility

• Platform: M5 (.308 AR-10) upper receivers and barrels
• Designed to match M5 threaded upper receivers
• Not compatible with M5E1 Enhanced Upper Receivers
• May not fit some billet uppers due to indexing tabs

Lengths, Weights & Dimensions

• Actual lengths: 12.7" = 12.56" | 15" = 14.94"
• Handguard weights: 12.7" = 8.79 oz | 15" = 10.16 oz
• Mounting hardware weight: 4.72 oz (all options)
• Inside diameter: 1.5"

Available Finishes (Length • SKU)

• 12.7" Anodized Black • APRA538704A
• 15" Anodized Black • APRA538705A
• 12.7" FDE Cerakote • APRA538714A
• 15" FDE Cerakote • APRA538715A
• 15" OD Green Cerakote • APRA538819A
• 15" Sniper Grey Cerakote • APRA538818A
• 12.7" OD Green Anodized • APRA538287A
• 15" OD Green Anodized • APRA538772A
• 12.7" Kodiak Brown Anodized • APRA538288A
• 15" Kodiak Brown Anodized • APRA538817A

Ideal Use

• Lightweight .308 AR builds needing a rigid, slim M-LOK handguard
• Precision, hunting, and preparedness rifles where secure mounting and reliability matter