Description
Built for high-performance shooting in a compact footprint, the Atlas R-One 10.5″ AR-15 Pistol is engineered for tactical precision and suppressor-ready reliability. Offered in your choice of 5.56 NATO or 300 Blackout, this firearm is optimized for controlled accuracy and fast follow-up shots in any setting.
Barrel performance is caliber-matched:
1:7 twist in 5.56 NATO – tuned for heavier, high-velocity rounds
1:8 twist in 300 Blackout – ideal for both subsonic and supersonic loads
The pistol-length gas system ensures smooth, consistent cycling, while an adjustable gas block allows you to fine-tune performance with or without a suppressor. The titanium bolt carrier group keeps the system lightweight yet robust, delivering superior heat resistance under continuous fire.
A slipover compensator cuts down on muzzle rise and recoil, making for faster, more accurate target transitions. Ergonomic control is built into every detail—featuring an SBA5 brace, sniper-grade pistol grip, and ambidextrous charging handle for intuitive use from any position.
Trigger control comes from the Rise Armament Rave 140, known for its clean break and rapid reset—precision engineered for shooters who demand speed with accuracy.
The build is completed with a 30-round magazine, integrated hand stop, and EOTech XPS2-0 holographic sight for fast acquisition and rugged reliability in dynamic environments.
Specifications
| Component | Details |
|---|---|
| Platform | Atlas R-One 10.5″ AR-15 Pistol |
| Caliber Options | 5.56 NATO or 300 Blackout |
| Twist Rate | 1:7 (5.56) or 1:8 (300 BLK) |
| Barrel | 10.5″ precision barrel |
| Gas System | Pistol-length – reliable suppressed/unsuppressed |
| Gas Block | Adjustable – tuned for load and suppressor optimization |
| Bolt Carrier Group | Titanium – lightweight, durable, heat-resistant |
| Charging Handle | Ambidextrous – smooth, universal control |
| Pistol Brace | SBA5 – compact and stable |
| Pistol Grip | Sniper-grade ergonomic design |
| Compensator | Slipover – reduces muzzle movement and recoil |
| Trigger | Rise Armament Rave 140 – fast, crisp, clean break |
| Optic | EOTech XPS2-0 – holographic sight with rapid acquisition |
| Magazine | 30-round capacity |
| Extra Feature | Integrated hand stop – ensures safe, stable grip |





