The Radical Firearms 16 inch Big Bore Contour 450 Bushmaster AR rifle uses MIL-STD Upper and lower receivers along with the 15 inch MHR free float rail system for increased accuracy, keeping your hands cool, and giving you plenty of room for accessories. Regardless if it's your first or fiftieth, a Radical Firearms AR rifle will not disappoint!
Features :
Features :
- "Barrel Length: 16";"Barrel Material: 4140 Chrome-Moly Vanadium Steel"
- Barrel Finish: Melonite
- Barrel Profile: Big Bore Contour
- Barrel Thread Pitch: 5/8x32
- Chamber: 450 Bushmaster
- Twist Rate: 1:20
- Barrel Extension: Single Feed Ramp
- Gas System: Mid Length
- Gas Block Type: .936 Low Profile Gas Block
