Product Description
16" A.R.M.S. Upper A4 1/7 QPQ
We started with a 5.56 16" 1/7 twist barrel for this build. The barrel is made from 4150 machine gun steel with a QPQ nitride finish. The upper receiver is T marked and is type 3 hard coat black. This does have M4 ramps. The Flash hider is a A2 this is for PISTOL OR SBR USE ONLY. It is also made of chrome-moly steel and HP tested. Our barrels are Mil-Spec or better. We recommend a 55gr or 62gr bullet for best accuracy. The front sight is a A.R.M.S flip up with bayonet lug and attached with taper pins. A Midwest Industries quad rail is included. Gas port size is .070.
Specs:
Upper: Cardinal, Performance Forge or Anchor Harvey Forged upper with M4 ramps
Barrel: TNTE 4150 16" 1/7 5.56 NATO QPQ button rifled barrel
Gas System: Carbine
Gas Block: A.R.M.S. Pinned on flip up
Handguard: Single wall skinny carbine
Flash Hider: A2
BCG: Optional
Charging Handle: Optional