For a similar attachment, see Muzzle Brake.
Karma" (SP) MP: · Weapon level 3 (Shotguns) · Weapon level 4 (Executioner) · Weapon level 5 (Pistols) · Weapon level 10 (SMGs)
Call of Duty: Black Ops II
The Long Barrel increases the range of a weapon by 16%. Therefore, the longer the initial range of a gun is, the longer the maximum range will be. The attachment is available for
Submachine Guns, Shotguns and Pistols. It is incompatible with the Supressor attachment.
The only weapons to actually change appearance cosmetically when outfitted with the Long Barrel are the Executioner and the Olympia.
The Long Barrel doesn't actually increase the damage inflicted. Despite the statistic increase, rather it increases the distance of the damage drop-off by increasing the range.
Menendez's Executioner in " Odysseus" has a long barrel attached, while in " Achilles' Veil", it has a standard barrel.
The Long Barrel is comparable to the Range Proficiency from
Call of Duty: Modern Warfare 3. The Long Barrel icon uses the M8A1 barrel.