AR Pistol Upper Only 9mm

Details:

– Barrel Length: 4″
– Barrel Profile: Heavy
– Barrel Steel: Chrome Moly Vanadium
– Barrel Finish: Nitride
– Chrome Lining: No
– Muzzle Thread: 1/2-28
– Chamber: 9mm (9×19)
– Twist Rate: 1 in 10″
– Barrel Extension: 9mm, Blowback
– Muzzle Device: Fluted Flash Can
– Receiver Material: 6061 Billet T6 Aluminum
– Receiver Type: Slick Side
– Handguard Type: 5″ Lightweight M-lok Rail
– Bolt Included: Yes
– Bolt Steel: 8620, Nitride / Heat Treated