The Radical Firearms RF-15 RADICAL PSTL 556NATO 10.5" 30RD BLK is an AR-style semi-automatic pistol built around MIL-STD upper and lower receivers and a 10.5-inch M4 profile barrel that balances short-barrel maneuverability with the ballistic performance of 5.56 NATO; the 10-inch RPR free-float M-LOK rail keeps your hands cool under sustained strings of fire while providing ample room for lights, optics, and backup sights, and the carbine-length gas system smooths recoil impulse for faster follow-up shots. Youll find shooter-friendly features like an A2 flash hider, MIL-STD ambidextrous safety, MIL-STD fire control group, MIL-STD charging handle, B5 Type 23 grip, and a pistol buffer tube that make the RF00139 a capable choice for range training, tactical drills, truck and home defense, and short-course competition. As part of Radical Firearms RF-15 line, this pistol delivers modularity and aftermarket support common to the AR-15 platform, and its 30-round capacity combined with reliable parts construction makes it a practical option for users who want a compact, configurable 5.56 NATO AR pistol that performs in close quarters and on the range.