12.5″ 5.56 NATO MID GASa


12.5″ 5.56 NATO MID GASa



12.5″ Chrome Lined 5.56×45 (.223) 1:7″ RH twist barrel

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.


In stock

Qty Available: 19

SKU: L7MJ1B Categories: ,


Barrel Caliber: 5.56×45

Barrel Length: 12.5 in / 317 mm

Barrel Material: Chromoly

Operating Method: Direct Impingement

Rifling: 1:7″

Additional information

Shipping Weight 64 oz
Shipping Dimensions 24 × 6 × 6 in