Aero Precision MOD 4 10.6" M-LOK AR15 Pro Series Handguard | Kodiak Brown Anodized

Aero Precision MOD 4 10.6″ M-LOK^® AR-15 Pro Series Handguard | Kodiak Brown Anodized

The Aero Precision MOD 4 10.6″ M-LOK^® AR-15 Pro Series Handguard in Kodiak Brown Anodized finish is a premium free-float rail designed for builders who want rigidity, modularity, and a refined interface for an AR-15 upper receiver. Aero’s MOD 4 handguard is part of its Minimal Optical Deflection design approach, blending a strong mounting system with an ergonomic profile for serious range, training, competition, and general-purpose rifle builds.

Machined from 6061-T6 aluminum, this Aero Precision MOD 4 handguard is engineered with stiffness in mind to help reduce rail deflection under load. The included steel barrel nut provides a durable foundation at the receiver interface, supporting a secure installation while helping maintain a stable mounting platform for rail-mounted accessories. For users building around lights, grips, sling hardware, or aiming devices, that rigidity helps the handguard feel more confidence-inspiring than lightweight rails that sacrifice structural support.

The 7-sided M-LOK^® interface gives the rail broad accessory placement flexibility while keeping the overall profile clean and functional. Four steel-reinforced Quick Disconnect sockets provide sling attachment points with added reinforcement where steel QD sling swivels interface with the handguard. The full-length top rail supports common sighting and accessory setups, while the 1.2″ internal diameter is compatible with low-profile gas blocks for streamlined AR-15 upper assemblies.

Installation is also designed with practical builder considerations in mind. The MOD 4 barrel nut does not require timing, and the barrel nut lug pattern matches mil-spec castle nuts, eliminating the need for specialty tools. Two anti-rotation set screws add redundancy and help create a more tailored fit when the handguard is used with compatible third-party upper receivers.

This 10.6″ Kodiak Brown Anodized handguard is designed to match seamlessly with Aero Precision M4E1 Threaded Upper Receivers and components from the PRO series. It is also compatible with mil-spec AR-15 upper receivers, making it a strong choice for builders upgrading an existing rifle or assembling a new upper around a rigid, modular M-LOK^® rail system.

Key Features:

• Minimal Optical Deflection MOD 4 handguard design
• Machined from 6061-T6 aluminum
• Steel barrel nut for a durable receiver interface
• 7-sided M-LOK^® accessory mounting interface
• Four steel-reinforced Quick Disconnect sling sockets
• No barrel nut timing required
• Barrel nut lug pattern matches mil-spec castle nuts
• Two anti-rotation set screws for added fitment security
• Compatible with low-profile gas blocks

Includes:

• 10.6″ MOD 4 Handguard in Kodiak Brown Anodized finish
• MOD 4 Barrel Nut
• MOD 4 Mounting Hardware

Specifications:

• Manufacturer: Aero Precision
• Platform: AR-15
• Series: MOD 4
• Handguard Length: 10.6″
• Material: 6061-T6 Aluminum
• Finish: Kodiak Brown Anodized
• Weight: 14.78 oz
• Internal Diameter: 1.2″
• Attachment System: M-LOK^®
• QD Sockets: 4 steel-reinforced Quick Disconnect sockets
• Handguard Screw Torque: 55+/-5 in-lbs
• Compatibility: Aero Precision M4E1 Threaded Upper Receivers, PRO series components, and mil-spec AR-15 upper receivers