Evike.com: Matrix S&T M4A1 GBB
OptimusPrime
17 Aug 2018
Entry level Matrix M4A1 Gas Blowback Rifle made by S&T are available at Evike.com. This use the Western Arms M4 GBB System so it can be compatible with other airsoft GBBs that utilise the same system such as G&P and Jing Gong... "If you want to get into the realism of playing with Gas Blowback systems, then look no further than the affordable line of GBBs provided by Matrix and S&T."