Description

Includes: M4E1 Enhanced Assembled Upper Receiver Quantum Handguard of choice 10" .300 Blackout CMV Barrel Low Profile Gas Block and Pistol Length Gas Tube Product comes assembled This assembly 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.