26rd standard CO2 magazine for KJ Works Model MEU KP-07 made with a Metal construction. This low profile bumper version offers better looks than the original thick bumper version of this magazine. But as a result of the lower profile bumper, the regulator is also smaller, which means that gas management and performance is sacrificed slightly. If all out performance, especially in cold weather, is more important than good looks, opt for the KJ Works 1911 CO2 Magazine - Thick Bumper Version (Also Fits Inokatsu 1911 & Nighthawk Custom GRP Steel Version).