Complete Upper Features
Upper is Mil-Spec upper receiver with M4 feed ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized. Barrel is 4150 Chrome Moly Vanadium steel with 17 twist, 16″ government profile with 5.56 chamber, button rifled, MP & HPI tested, Mid-length gas system, Nickel Boron coated barrel extension, 11 degree target crown and QPQ coating with A2 flash suppressor and crush washer. Barrel has been dimpled to ensure gas block does not move. BCG is M16 Profile, MPI Magnetic Particle Inspected tested, 9310 steel bolt with extra power extractor spring with black insert, properly staked gas key, black nitride coated.
BCM Gunfighter Alpha Keymod Rail is manufactured from 100% aluminum, it is lightweight yet durable. Also featuring a proprietary patent pending mounting, indexing and lock up system that mitigates 1200 rail movement under heat generated from the barrel nut. The KMR Alpha is hardcoat anodized for corrosion resistance as well as to maintain a non-reflective finish. The BCM KMR Alpha also allows for a larger range of modularity offering 4 different offset mounting positions between traditional 3,6,9, and 1200 positions. One nylon picatinny rail section and one QD sling attachment is also included.
The matched BCG used for the test-fire is included in the box with the upper.