AeroPrecision115700668
Aero Precision Standard Upper Receiver Stripped AR-15 Aluminum$104.99
Availability: In Stock
Current Stock: Out of stock
The Aero Precision Atlas R-One AR-15 handguard is built for shooters who refuse to carry unnecessary weight without sacrificing strength or features. Machined from 6061-T6 aluminum, this lightweight handguard pairs Aero's proprietary ATLAS (Aero Taper Lock Attachment System) with a slim profile that doesn't compromise on mounting stability. If you're building a carbine that needs to stay nimble—whether for precision work at the range, hunting, or dynamic shooting—the R-One delivers the rigid platform you expect from Aero with the ounces you've been saving for elsewhere.
The ATLAS system is the star here. Instead of the uneven clamping pressure that can distort handguards, ATLAS uses mirrored tapered locking nuts and a custom-engineered barrel nut to apply even pressure across the entire attachment interface. A ratcheting detent locks everything in place and confirms you're indexed correctly during installation. All mounting hardware comes in the box—no hunting for proprietary parts.
You get a full-length top picatinny rail for optics, lights, or other accessories, plus QD sling sockets at the 3, 6, and 9 o'clock positions for sling routing options. The handguard works seamlessly with Aero's own M4E1 Threaded Upper Receivers and is compatible with any mil-spec AR-15 upper and barrel. One note: billet upper receivers may have indexing issues due to the ATLAS design, so verify compatibility with your upper before ordering.
Choose KeyMod or M-LOK attachment profiles in 12" or 15" lengths (7" and 9" options are in development). The weight savings are real—a 15" KeyMod R-One weighs just 8.96 oz, with the mounting hardware adding 4.72 oz total. Every ounce counts on a rifle you're carrying all day.
| Material | 6061-T6 Aluminum |
| Attachment System | ATLAS (Aero Taper Lock Attachment System) |
| Profile Options | KeyMod or M-LOK |
| Length Options | 12" or 15" (7" and 9" coming soon) |
| Inner Diameter | 1.3" |
| Outer Diameter | 1.5" |
| Weight (12" KeyMod) | 7.84 oz |
| Weight (15" KeyMod) | 8.96 oz |
| Weight (12" M-LOK) | 8 oz |
| Weight (15" M-LOK) | 9.07 oz |
| Mounting Hardware Weight | 4.72 oz (same for all ATLAS handguards) |
| Compatibility | Mil-spec AR-15 upper receivers and barrels; Aero M4E1 Threaded Upper Receivers |
| Hardware Included | Yes, all mounting parts included |
The Atlas R-One is compatible with any mil-spec AR-15 upper receiver and barrel. It's designed to match seamlessly with Aero's M4E1 Threaded Upper Receivers. However, billet upper receivers may not be compatible due to indexing tabs on the ATLAS system, so confirm your upper receiver type before purchasing.
The Atlas R-One has a 1.3" inner diameter and works with low-profile gas blocks, making it compatible with standard rifle profiles. Your barrel needs to fit within the handguard's diameter; confirm your gas block and barrel profile before ordering if you're unsure.
Yes. The Atlas R-One includes all mounting hardware needed for installation—barrel nut, locking nuts, detent, and turnbuckle screw. No additional parts required to get it mounted on a mil-spec upper.
Both versions use the same ATLAS attachment system and offer identical lengths and features. The difference is the slot profile on the handguard rail: KeyMod uses the KeyMod standard, M-LOK uses the M-LOK standard. Choose whichever matches your accessories and personal preference.
SKU: 115658325 • Weight: 1.215oz