The Radical Firearms RPR 16 inches SOCOM 5.56x45mm AR rifle is built for precision and performance, featuring MIL-STD upper and lower receivers combined with a 15 inches RPR free float rail system that enhances accuracy. This rail system not only helps maintain a cooler grip but also provides ample space for adding accessories. The rifle is equipped with a B5 Grip Type 23 pistol grip for improved handling, an A2 flash hider to reduce muzzle flash and a Chrome-Moly Vanadium threaded barrel for durability and versatility. Designed to deliver reliable performance, the RPR 16 inches SOCOM AR rifle is perfect for both tactical and recreational shooters.Details Caliber: 5.56x45mm Ecommerce Platform: AR-15 Firearm Action Type: Semi-Auto Hand Orientation: Right Muzzle Device: Flash Hider Muzzle Thread: 1/2-28 Barrel Length: 16 Stock Type: Fixed Stock Manufacturer: B5 Systems Model/Series: RPR Repeating Action Type: Gas-Operated State Compliance: CA