Very lightly used complete upper purchased complete from optics Planet. No handling/ use marks LNIB condition. Function is flawless with any type of ammo, steel or brass. Very good accuracy. I used it for hunting and would pull cheap FMJ bullets from full cases and seat a Hornady SST in its place. Very accurate for hunting inside of 150 yds. Included is one 5 round magazine, several boxes of ammo a one full box of Hornady SST .310 bullets for this caliber. Below are the specs:

The Radical Firearms Upper Receiver is a flat top, law-enforcement grade, drop in receiver, ready to be mounted to any Mil-Spec AR-15 lower receiver! This fully mil-spec compliant receiver provides a high-quality upper for any level budget or shooter. Comes complete and assembled with Upper Receiver, Forward Assist, Ejection Port Door, RF Barrel Nut. HBAR Barrel and A2 Flash Hider. Our free-float handguard: Forward Guard Shield (FGS) keeps your hands cool and provides plenty of room for accessories. The FGS rail even has the capability to add attachments other than on the top picatinny rail, as it does allow Magpul Moe attachments and rail sections.image

Specifications for Radical Firearms AR-15 Complete Upper Receiver 7.62x39 HBAR:
Manufacturer: Radical Firearms
Caliber: 7.62x39mm
Barrel Length: 16 in
Threads per Inch: 5/8x24
Muzzle Device: A2 Flash Hider
Finish: Melonite
Color: Black
Gun Model: AR-15
Fabric/Material: 4150 CMV Steel
Gun Type: Rifle
Gun Make: AR Platform
Bolt Carrier Group Included: MIL-SPEC
Charging Handle Included: MIL-SPEC
Magazine Included: yes150.00