Aero 9.1 Mod 4 Handguard Odg

The Aero Precision 9.1 Mod 4 Handguard in OD Green is a lightweight, precision-machined rail system built for AR-15 and M4E1 platforms that demand both modularity and rugged reliability. Machined from 6061-T6 aluminum and finished in mil-spec anodized OD Green, this handguard strips weight without sacrificing strength—ideal for hunters, competition shooters, and tactical enthusiasts who value a nimble, responsive rifle build.

What sets the Mod 4 apart is its thoughtful engineering: the eliminated center top rail cuts ounces while the 12 o'clock indexing grooves lock in your grip and accessories with positive control. Quick disconnect sling socket positions at 3, 6, and 9 o'clock give you flexible carry and attachment options, and the M-LOK slots let you mount everything from lights and lasers to rail sections exactly where you need them. At 5.27 ounces and a true 9.1-inch length, it won't bloat your rifle's overall weight or create unwieldy length.

The 9.1 Mod 4 plays well with mil-spec and Aero's own M4E1 upper receivers, and the low-profile gas block compatibility means you won't fight fitment issues during assembly. Whether you're running a compact hunting rifle, a recce-style build, or a mid-length AR that needs clean lines and minimal bulk, this is a no-fuss, American-made option backed by Aero Precision's reputation for consistency.

Key Features

• Machined 6061-T6 aluminum construction with OD Green anodized finish
• Reduced-weight profile with eliminated center top rail section
• Indexing grooves at 12 o'clock for positive grip control and alignment
• Quick disconnect sling sockets at 3, 6, and 9 o'clock positions
• M-LOK attachment system for modular accessory mounting
• Low-profile gas block compatible
• Compatible with mil-spec AR-15 and Aero M4E1 upper receivers

Specifications

Frequently Asked Questions

What AR-15 receivers and uppers is the Aero 9.1 Mod 4 compatible with?

The handguard is compatible with mil-spec AR-15 upper receivers and barrels, as well as Aero Precision's M4E1 upper receiver platform.

Will this handguard fit my low-profile gas block?

Yes. The Aero Mod 4 is designed to accommodate low-profile gas blocks without fitment issues.

What's included with the handguard?

The package includes the 9.1 Mod 4 Handguard with integrated M-LOK attachment system and OD Green anodized finish. Installation hardware follows standard mil-spec torque specs (55±5 in-lbs).

How much weight does this handguard add to my rifle?

The Aero 9.1 Mod 4 weighs 5.27 ounces, keeping your AR-15 or M4E1 build light and responsive without sacrificing durability or rail real estate.