M4E1 Enhanced 20" 5.56 Rifle Length Complete Upper Receiver

This Complete Upper includes our Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. Includes: M4E1 Enhanced Assembled Upper Receiver Enhanced Handguard of choice 20" 5.56 Rifle Length CMV Barrel Low Profile Gas Block and Rifle Length Gas Tube Product comes assembled This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab M4E1 Upper Features: Forged from 7075 T6 aluminum Precision machined to M4E1 specs M4 feedramps Matte black hard coat anodized Mil 8625 Type 3 Class 2 Laser engraved T-marks (Anodized only) Comes assembled, with port door and forward assist installed Accepts standard AR15/M16 components Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards Barrel nut and wrench are included Enhanced Handguard Features: 1pc free float design Rail is Machined from 6061-T6 Aluminum Built in Anti-Rotation tabs Scalloped rails Continuous top rail 1.78" inside diameter fits most muzzle devices and 1.5" suppressors Compatible with low profile gas blocks Gen 2 Feature - Quick disconnect sling socket at the 3, 6 and 9 o'clock positions Gen 2 Feature - Additional milling along flats to aid with gripping and add visual appeal Gen 2 Feature - New profile for the continuous picatinny top rail 20" 5.56 Rifle Length Barrel Features: 5.56 Nato 20" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist Government Profile .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider