Harrington & Richardson 10″ 607 Upper

FROM PSA:

DETAILS

Caliber: 5.56 NATO
Barrel Length: 10.5″
Barrel Profile: Pencil
Barrel Steel: 4150 Chrome Moly Vanadium
Barrel Finish: Parkerized
Chrome Lining: Yes
Muzzle Thread Pattern: 1/2″ x 28
Twist Rate: 1 in 7″
Barrel Extension: M4
Gas System Length: Carbine
Diameter at Gas Block: .625″
Gas Block Type: Rifle Height Front Sight Base
Muzzle Device: Improved 3-Prong Flash Hider
Receiver Material: Forged 7075-T6
Upper Receiver Type: Slick Side Carry Handle, Gray
Handguard Type: Carbine, Triangular, with heat shields
Bolt Material: Carpenter 158 Steel
Bolt Carrier Profile: Full Auto
Overall Length: 23.5 inches

FEATURES

New 607 STYLE upper! Material is 7075-T6 The finish is Gray type 3 hard coat anodizing. This slick side, commando style, upper is manufactured in the US and assembled by our most experienced armorers.

NOTE: This is a Pistol upper only. The muzzle device is NOT permanently attached, and the barrel is NOT 16″