M4E1 Threaded 14.5" 5.56 Mid-Length QPQ Complete Upper 13.5" Slimline Handguard - OD Green Anodized

This Complete Upper includes our Slimline 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. NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center. Includes: M4E1 Assembled Upper Receiver without Forward Assist Slimline Handguard 14.5" 5.56 Gov CMV Barrel Low Profile Gas Block and Mid-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 The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build. 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 Comes assembled, with port door installed Accepts standard AR15/M16 components Slimline Handguard Features: Full top picatinny rail for optional attachments Full length MLOK attachment points at the 3, 6, and 9 o’clock positions Compatible with low profile gas blocks 1.3” Inside diameter 1.5” Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 14.5" 5.56 GOV. Barrel Features: 5.56 Nato 14.5" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-Length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider