Del-Ton AR-15 A3 Upper Receiver Assembly 5.56x45mm NATO 16″ 1 in 9″ Twist Lightweight Contour Barrel

Cartridge
5.56x45mm NATO
Material
Aluminum
Barrel Length
16 Inches
Twist
1:9 Inches
Threads
1/2″-28
Barrel Contour
Lightweight
Sights
Yes
Barrel Finish
Black Parkerized
Chrome Lined
No
Gas Block Diameter
0.75 Inches
Gas System Length
Carbine
M4 Feed Ramps
Yes
Upper Receiver Type
A3 Flat-Top
Barrel Material
4140 Chrome Moly Steel
Handguard
2-Piece Polymer A2-Style w/Heatshield
Bolt Carrier Assembly Included
Yes
Muzzle Device
A2 Flash Hider
Mil-Spec or Commercial
Commercial
Compatible With
AR-15