The Radical Firearms RPR 16" SOCOM 5.56mm AR rifle features MIL-STD upper and lower receivers, ensuring a solid foundation for performance. This model includes a 15" RPR free float rail system that enhances accuracy and allows for the attachment of various accessories. The rifle is equipped with a B5 Grip Type 23 pistol grip and a B5 Bravo Stock with six adjustable positions.Additional features include a carbine MIL-STD buffer tube, an A2 flash hider, and a Chrome Moly Vanadium threaded barrel.