Blitzkrieg Tactical M4/AR-15 Upper Receiver With Forward Assist & Dust Cover
Back in stock
This does have the forward assist and dust cover installed.
Made from forged 7075 T6 aircraft grade aluminum
Precision machined to mil spec standards
Innovative surface prep of each part to ensure quality and consistent finish
Type III Hard Anodize finish for durability
Includes Ejection Port Cover and Forward Assist Assembly INSTALLED
M-4 (with feed ramps).
Installation & Assembly
We make all of our forged 5.56 uppers with a tight center bore (the hole in the upper that the barrel extension goes into).
We do this to ensure a very tight fit between the barrel and the upper receiver. This helps eliminate harmonics/barrel whip issues. Especially with thinner & lighter profile barrels.
To install your barrel in one of our uppers you will need to put a light coat of grease on the barrel extension (the part of your barrel that is inserted into your upper) and you may need to heat your upper with a heat gun or hair dryer. This allows the aluminum to expand enough so that the upper can accept the barrel.