Time to include this in your Dark Earth AEG project. You can get it from RedWolf Airsoft... "An Airsoft replica of the TD BattleGrip, it comes complete with an O-ring protected internal storage compartment. Able to fit 1x CR123a battery within or your choice of battlefield essentials. Fits any 20mm rail, the QD mount features a locking mechanism to prevent accidental release during skirmishes!"