On pre-order now from PTS Syndicate, Evike.com features the PTS Mega Arms MKM CQB Gas Blowback Rifle with Spartan117gw explaining more about this GBB rifle. Fully licensed by Mega Arms, this uses the KWA gas blowback system with the receiver made of Aluminium making it lighter and still durable. It comes with a 9-inch KeyMod Rail and a 10.5inch CQB length barrel.