GHK MK12 20 rds Green Gas Magazine For GHK M4 GBB Airsoft Rifle Power-(fps)_370-400 FPS can also be powered by

can also be powered by a readily available AAA alkaline battery and a AAA lithium battery

A5 Type "Slim-Line" Telescopic Buttstock

5mm boreSpecially designed with BB Latching System to prevent dropping BBs after removing the magazineManually opened to release BBs from inside hopup chamber by handThe Dual UV LED Boards and Module set and Single UV LED Board w/ Clear Cover and Module set to glow BBs in the dark ready

It targets the energy from the battery directly to the motor

GHK MK12 20 rds Green Gas Magazine For GHK M4 GBB Airsoft Rifle Power-(fps)_370-400 FPS can also be powered byGHK MK12 20 rds Green Gas Magazine For GHK M4 GBB Airsoft Rifle Metal Construction Airsoft Magazine 20 Rounds Loading Capacity Gas Magazine Suitable For GHK M4 G5 AR15 Series Gas Blow Back GBB Rifle Airsoft Guns Work With Top Gas Green Gas Best accompanied with Plastic Bullet Loading Too or Speed Loader Suitable for 6mm Plastic Bullet BB