The JK Army show the SAVIA Hi-Capa H7.5 gas blowback PCC that boasts several impressive features, including compatibility with TM Spec. Hi-Capa Gas Magazines, a Steel BCG and MIM Steel Trigger Group Parts, a Quick-Adjust Hop Up, an Aluminum Alloy Upper and Lower Receiver, a 7.5" M-LOK Aluminum Handguard ( AEG / MWS Barrel Nut ) Spec., GBB Grip Spec., a Buffer Tube TM MWS GBB Spec. and inclusion of a SAVIA LIKISEI Super Lightweight Aluminum 165mm 35 Rounds Mid Gas Magazine.