Lewis Machine & Tool (LMT) AR-15 MRP Chrome Lined 5.56 NATO AR-15 Barrel - 12.5"

This barrel was specifically designed to compliment the L7Z1A "Spec War" upper receiver. The short dwell time of the gas system creates an optimal recoil impulse and gas pressure for both suppressed and non-suppressed shooting while maintaining expected reliability. Designed for the LMT monolithic receiver, this barrel utilizes a low profile gas block, mid length straight gas tube, and A2 birdcage for reduced flash. The barrel is coated and cryogenically treated for long term durability. Specifications: Barrel Caliber: 5.56x45 Barrel Length: 12.5 in / 317 mm Barrel Material: Chromoly Operating Method: Direct Impingement Rifling Twist Rate: 1:7"