DealModel: AR-50A1 Caliber: .50 BMG Barrel: 30" Chrome moly, 8 Groove Rifling Twist: RH 1:15" Muzzle Device: Highly Efficient Multi-Flute Recoil Check, Very Moderate Felt Recoil. Threading: 1"-14 Upper Receiver: Modified Octagonal Form, Grilled & Slotted for Mil STD Scope Rail with Boss to Engage Cross-Slot on Receiver from Red Dot Arms (Product ar-50a1) |