http://www.facebook.com/badabingpictures Hi guys, here's a quick video showing you the differences between a standard TM M4 GBBR magazine and a modified for green gas magazine in Cold Weather conditions. I thought I would fire in bursts instead of semi auto to show you how capable the system is. Obviously GBBR's are best left in semi auto and as such you can expect it'll be better for performance. Green Gas Mod Tutorial: https://www.youtube.com/watch?v=sCNgf_fEC2c