Aero Precision M5 Atlas S-One M-Lok Handguard 15" Od Green Cerakote
The Aero Precision M5 Atlas S-One M-Lok handguard is built for shooters who want a lightweight, slim-profile rail without sacrificing strength or modularity. At 15 inches with an 8.71 oz weight, this machined 6061-T6 aluminum handguard brings Aero's reputation for precision and durability to your AR platform—whether you're building a fast-handling hunting rifle, a competition gun, or a go-anywhere field rig. The S-One line prioritizes weight savings and clean aesthetics while maintaining the rigid platform you expect from Aero Precision's handguard lineup.
The star here is Aero's proprietary ATLAS (Aero Taper Lock Attachment System) mounting system. Rather than traditional single-point clamping, ATLAS uses mirrored tapered locking nuts that distribute pressure evenly across a custom-engineered barrel nut via a turnbuckle screw. A ratcheting detent locks it all in place and ensures positive registration during installation. The result: no handguard distortion during setup, and a rock-solid attachment that stays put. All mounting hardware is included, so you're ready to go straight out of the box—just have a standard armorer's wrench on hand to complete the install.
M-Lok slots run the length of the rail, with indexing grooves at 12 o'clock for positive grip control. Quick-disconnect sling mounts sit at 3, 6, and 9 o'clock positions for flexible attachment options. The top rail is milled down the center for weight reduction, while front and rear picatinny sections give you traditional mounting points where you need them. The 1.5-inch outside diameter works with standard low-profile gas blocks and fits mil-spec AR15 upper receivers and barrels. Made in the USA, this is the handguard for builders who measure twice and cut once.

