Silverback MDRX 60 degree Flat Hop Up Rubber (4pack) Magazine-Type_Spring Pistols Extensive testing has demonstrated that

Extensive testing has demonstrated that a recoil booster is not necessary for most weapons

-Can fire continuously stream of BB's towards by keeping the button pressed down

Ball bearings in the motor provide stability and reduce friction when in motion to ensure that no energy is wasted

For Low-Vis operations

Metal Gearbox Upper Receiver allows installation of 11

Silverback MDRX 60 degree Flat Hop Up Rubber (4pack) Magazine-Type_Spring Pistols Extensive testing has demonstrated thatSilverback MDRX 60 degree Flat Hop Up Rubber (4pack) Rubber Construction AEG Airsoft Hop Up Rubber 60 Degree Hard This rubber can fit inside most of airsoft guns using ? AEG? hop up rubber 5 dot lips design for bbs feeding, flat contact patch, similar to Silverback SRS TAC41 and GBB hop up rubbers Suitable For Silverback MDR X Series Electric Gun AEG Airsoft Rifle