KJ Works Tanio Koba M4 Gas Blow Back GBB Airsoft Rifle

KJ Works Tanio Koba M4 Gas Blow Back GBB Airsoft Rifle 1/1 Scale High Power Assembled Gas Powered Airsoft GBB Airsoft Guns Semi & Fully Automatic Shooting Mode Metal Receiver Metal Outer Barrel & Flash Hider Polymer Handguard Metal Charging Handel, Selector & Magazine Release Metal Bolt Catch & Trigger Polymer Non-Slip Texture Pistol Grip Polymer Buttstock With Metal Stock Pipe 30rds Loading Capacity Gas Magazine Opening the bolt cover to adjust HOP UP Sling mount can be installed with any single, 2- or 3- point tactical sling