This is a Palmetto State Armory 11.5" Black Nitride A2 1:7 Twist Carbine Upper Assembly. Built by PSA and made in the USA!!

Barrel Length 11.5"
5.56 Nato Chamber
1 in 7" twist
Carbine-length Gas
Black Nitride Finish
.750" Gas Block Diameter
M4 Feedramps
Forged Upper
**Upper may or may not have T-marks
INCLUDES BLK NITRIDE BCG & CHARGE HANDLE