ASG - CZ SP-01 Shadow 26rnd Gas Magazine - Black is a Spare Magazine for the CZ SP-01 Shadow Gas Blowback Airsoft Pistol, designed by Action Sports Games, and licesnsed by esk zbrojovka Uhersk Brod. The magazine is constructed from Alloy, with a Polymer Feed Guide, Feed Lips and Extended Base Plate. The magazine is designed to be double stacked, allowing it to hold up to 26 rounds, and comes with a specially designed extended base plate making it easier to remove from the Pistol. The magazine is filled with BBs from the front of the magazine, and is filled with Gas From the bottom, with the fill valve accessible through the base plate. The magazine features an extended BB Fill Gap, making it easier to fill the magazine with BBs when wearing gloves. This is the perfect purchase for any Airsoft Skirmisher or Practical Pistol Shooter, who wants additional magazines to increase the time between having to stop and re-fill magazines.