Modern Armory 16" 5.56 NATO 1:7 Midlength Duty Grade Barrel

MA Defense Duty Grade Barrels are 100% USA Made and are individually inspected to ensure it meets its required specifications. ALL MA Barrels come with a Lifetime Guarantee to be free from manufacture defects.16" Government Profile5.56 NATO4150 CrMoV Steel (Chrome Moly Vanadium per MIL-B-11595E)1:7 Twist Rate/ 6 GroovesQPQ Nitride FinishMil-Spec 86L20 case hardened M4 extension with Polished Feed Ramps1/2- 28 Threaded muzzleMid-Length Gas SystemGas port .078" diameter.750 Gas BlockDimpled for Gas Block Set ScrewFully stress-relieved barrelHigh Pressure Tested (HPT)Magnetic Particle Inspected (MPI)Weight 29.0 ouncesThis design has the capabilities of shooting sub MOA accuracy with match grade ammunition.*Lifetime Guarantee covers manufacturing defects in materials and workmanship, regardless of the age of the product, but it does not cover normal wear and tear. Wear and tear is damage that naturally and inevitably occurs as a result of normal use.The use of reloaded or remanufactured ammunition will void the warranty, due to the unpredictability of the standards (SAMMI/NATO) adhered to, since reloads of poor quality ammunition may not meet (SAMMI/NATO) specifications, may exceed limits, and therefore may be unsafe.