Guarder 6.02 Economic Ver. Inner Barrel w/Chamber Set for TM Model 17 Gen5 MOS GBB (87mm for Model 4

Key Features 6061 Aluminum Construction Outer Barrel (Hard Anodizing) 6.02 High Precision tighter bore Inner Barrel Aluminum Hop Up Chamber Steel Hop Up Rail Block With 70 Degree Rubber Hop Up Bucking Compatible For Guarder G45 Outer Barrel Suitable For Tokyo Marui G17 Gen5 MOS Gas Blow Back GBB Airsoft