Product Description
11.5 MK-18 Upper A4 1/7 QPQ Troy Quadrail
We started with a TNTE M4 5.56 11.5" 1/7 twist barrel for this build. The barrel is made from 4150 machine gun steel with QPQ Nitride treatment to the exterior, bore, and chamber. 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. Our barrels are Mil-Spec or better. We recommend a 55gr or 62gr bullet for best accuracy. The front sight is a A2 F-Marked with bayonet lug and attached with taper pins. A Troy Industries quad rail is included. Gas port size is .070.
Specs:
Upper: TNTE A3 Upper 7075-T6 with M4 ramps
Barrel: TNTE M4 5.56 11.5, 1/7, 4150 CMV, QPQ, 1/2-28 thread
Gas System: Carbine
Gas Block: F-Marked A2
Handguard: Troy Two Piece Drop In
Flash Hider: A2
BCG: Optional
Charging Handle: Optional
