18" Series II Mid-Gas Fluted/Twister 7.62 x 51N Barrel ($340)
DEZ Arms, Inc., Match Series II 18" Mid-Gas 7.62 x 51N (.308) barrel with installed M4 feed ramped barrel extension fits a .308 DPMS pattern upper receiver. Uses a mid-length gas system and forearm (not included).
Requires: Complete 7.62 x 51 bolt assembly (not included) replaces 5.56/.223, .308 upper/lower receiver (AR-10)
DEZ Arms' custom machined match barrels are made from 4150 chrome-moly vanadium steel manufactured in the USA. Barrel are head spaced with M4 (nickel boron) feed ramped extension installed, pre drilled gas port hole with parkerized finish. Barrels are particle tested, air gauged, concentrically cut and muzzle threaded 5/8” x 24. twist to accept flash hiders/suppressors, stressed relieved, turned on center to prevent accuracy robbing distortion when the barrel heats up, and hardened to 26-33 Rc giving the barrel a long life. The 11 degree crown, polished chamber and lapped bore makes the difference! Our pulled-button rifling produces a superbly accurate bore diameter with uniform rate of twist. Fluted models feature DEZ unique fluting designs to improve rigidity and aid in barrel cooling.
The match barrel is machined to rigid specifications
Caliber: 7.62x51 NATO
Contour: HBAR (Fluted)
Twist Rate: 1x10
Muzzle: 5/8"-24 Threaded / Crowned
Diameter at Gas Port: .750"
Gas Type: Mid
Material: 4150 CMV Steel
Rifling: Button / 6 Groove
Finish: Mil-Spec Phosphate
Weight (Varies on fluting): Straight Flute - 2 Lb. 11.4 Oz. / Twist Flute - 2 Lb. 12.5 Oz.