This RGQ from RGuns is a semi-automatic AR-15 pistol that is chambered .223/5.56NATO. This particular model features a 10.5″ CMV national match barrel that is incredibly accurate. This is turned to center, stress relieved, and chamber polished. This model is also particle tested, and air gauged. The upper and lower receiver are a matched set constructed of 7075-T6 aluminum and are Type-3 hard coat anodized black. A notable feature of this model is the free-float Picatinny rail section that is perfect for attaching any tactical accessories of your choosing. Also featured on this model is a Yankee Hill Machine flash mitigation device. To bring it all together, this model comes with an adjustable SB Tactical SBA4 pistol brace. If you are looking for an AR-15 pistol that combines quality features this is what your looking for.