This Adams Arms complete upper INCLUDES the BCG & Charging Handle!Specifications:
The 5.56 Midlength Base 16" Upper is a standard mil-spec
upper that incorporates the patented Adams Arms technology and the m4
style handguards. The midlength piston system will give you the benefits
of a longer forearm by giving the user a longer, more ergonomic grip, a
longer sight radius between the front and the rear sight for quicker
sight acquisition and less felt recoil. The piston system parts and the
barrel have been treated with our salt nitride Meloniting process making
them harder and more corrosive resistant than hard chrome. With the
patented Adams Arms piston system you'll have an upper that will run
cleaner, cooler, and longer than any other AR upper you own.
Upper Receiver: A4 Flat-Top, Forged
Barrel Length: 16"
Barrel Contour: Government
Barrel Material: 4150 Chrome Moly Vanadium Steel
Muzzle Thread Pattern: 1/2"-28
Chrome Lined: No
Barrel Finish: QPQ Melonite / Black Nitride
Twist Rate: 1 in 7"
Chamber: 5.56x45mm NATO
M4 Feed Ramps: Yes
Bolt Carrier: 1-Piece w/Integral Piston Strike Face
Muzzle Device: A2 Flash Hider
Gas System Length: Midlength, Short Stroke Piston Operated
Gas Block Diameter: 0.750"
Handguard: 2-Piece Polymer, Mid-Length
Sights: None, Single Rail Gas Block
Weight: 4.387 lbs