Aero Precision Ar15 15" Enhanced M-Lok Handguard Gen 2 - Black Apra100218A

The Aero Precision AR15 15" Enhanced M-LOK Handguard Gen 2 is a lightweight free-float rail system purpose-built for AR15 and M4E1 platform rifle builds. If you're stepping up from standard Picatinny rails or upgrading a custom AR, this handguard leverages the M-LOK attachment standard to give you genuine modularity—letting you mount lights, ladders, grips, and accessories exactly where you want them without the bulk of older rail systems. The Gen 2 iteration adds refinements that matter: milling along the grip flats for better purchase, quick-disconnect sling socket positions at 3, 6, and 9 o'clock, and an improved continuous top Picatinny rail profile.

Built to mil-spec dimensions and finished in hardcoat anodized black, this handguard maintains strength and rigidity while keeping weight down. The one-piece design floats free of the barrel, allowing natural harmonics that help with accuracy in both hunting and precision shooting applications. Anti-rotation tabs keep everything solid when installed on compatible uppers, and scalloped rails reduce weight further without sacrificing load-bearing surface for your attachments.

Compatibility is straightforward: if you're running an Aero Precision M4E1 Enhanced Upper Receiver, install is direct with no additional components needed. Using a standard threaded upper receiver? You'll need Aero Precision's BAR Barrel Nut to interface properly—the handguard won't work with a stock barrel nut. The inside diameter accommodates most common muzzle devices and 1.5" suppressors, and it's compatible with low-profile gas blocks, giving you real flexibility in your build choices. This handguard is specific to the AR15/M4E1 platform and is not compatible with the larger M5 .308 systems.

Key Features

• One-piece free-float design for accuracy and reduced bulk
• M-LOK attachment system for modular accessory mounting
• Anti-rotation tabs and built-in stability
• Continuous top Picatinny rail with improved profile (Gen 2)
• Quick-disconnect sling socket positions at 3, 6, and 9 o'clock (Gen 2)
• Scalloped rails for weight reduction
• Enhanced grip flats for better hand purchase (Gen 2)
• Compatible with low-profile gas blocks
• Hardcoat anodized black finish

Specifications

Frequently Asked Questions

Will this handguard work on my standard AR15 upper receiver?

Yes, but with an important caveat: you must use Aero Precision's BAR Barrel Nut to attach it. This handguard is not compatible with standard barrel nuts. If you're using an Aero Precision M4E1 Enhanced Upper Receiver, no additional hardware is needed.

Can I use this on my .308 AR build?

No. The 15" Enhanced M-LOK Handguard Gen 2 is designed exclusively for AR15 and M4E1 platforms. It is not compatible with Aero Precision's M5 or M5E1 .308 systems.

What's the inside diameter, and will my suppressor fit?

The handguard's bore diameter is 1.72" from the barrel nut to the forward end, opening to 1.78" at the barrel nut cut area. It will accommodate most common muzzle devices and suppressors up to 1.5" diameter.

Is the M-LOK system better than Picatinny rail for mounting accessories?

M-LOK and Picatinny rails both work well; M-LOK excels at distributing attachments without the bulk and weight of continuous railed surfaces. This handguard includes a continuous top Picatinny rail (Gen 2 improved profile) so you get both options where they matter most.