V Seven Weapon Systems AR-15 Port Door Straight Rod

V SEVEN's lightweight, aluminum port door rod is an upgrade to the ultra-light V SEVEN port door. Constructed from 6061 aluminumType iii hard coat anodizedCorrosion resistantSpring includedRod weighs approx. 1/3 the weight of a standard mil-spec versionLifetime warrantyMade in the united states of AmericaWeight: 2.2 grams PLEASE NOTE: TO BE USED ON BILLET UPPER RECEIVERS WITH A BLIND HOLE.