Lewis Machine and Tool MRP Gen 2 Chrome Lined 5.56 AR-15 Piston Barrel - Carbine - Medium - 12"

Note: this barrel is under 16 inches in length. The National Firearms Act regulates configurations assembled with barrels this short -- know the NFA laws in your state before purchasing.

The MRP Gen 2 5.56mm Chrome Lined Piston Barrel by Lewis Machine and Tool Company is a versatile and durable barrel with a piston operating rod adjustable for regular or suppressed operation, providing a great deal of utility for one barrel.

Features:

• 12" barrel, Medium profile
• Chambered in 5.56mm, 1:7 twist
• 41V50 chrome moly vanadium steel
• Chrome-lined bore, manganese phosphate exterior finish
• Cryogenically treated
• Carbine-length gas system
• .750" gas seat diameter
• Threaded 1/2x28
• For LMT monolithic receivers
• A2 birdcage flash hider
• Adjustable gas piston block

The cryogenic treatment enhances the strength and service life of the barrel, and the adjustable gas piston block gives shooters regular or suppressed operation from the same barrel.

Lewis Machine and Tool Company has been providing US Military, law enforcement, and government agencies with high-quality weapon systems since 1980. LMT is dedicated to providing that same level of precision engineering to civilians, and is a qualified GSA supplier with numerous awards for engineering excellence.