PTS Syndicate - EPM-GBBR Enhanced Polymer Gas Blowback Magazine - Black is an Airsoft 6mm Gas Blowback Magazine, designed by PTS for LM4 Type Gas Blowback Rifles. The magazine is built by KWA, and constructed with a Polymer Outer Shell, with alloy internals. The Shell of the Magazine is constructed from High Performance Reinforced Polymer and is based on the Enhanced Polymer Magazine (EPM) Design. The magazine holds up to 40 Rounds, and features Polymer Feed Lips, and is filled from the top using an Airsoft Speed Loader. The Magazine is gassed from the bottom into a Recessed Fill Valve to prevent dirt build-up and is filled with any Airsoft Green Gas. The magazine features Textured side panels for easy grip, and a smooth shell which makes the magazine easier to draw by preventing snaggage. The bottom of the magazine features a removable base plate which features a Dot Matrix Panel which can be coloured, creating identification marks to allow the user to keep track of used Magazines. This magazine is a must buy for any Airsoft Skirmisher who owns an LM4 or compatible GBBR Platform, providing better efficiency over standard STANAG Style Magazine.