Silverback Replacement O-ring Set For MDRX AEG Airsoft Rifle (Complete)

Silverback Replacement O-ring Set For MDRX AEG Airsoft Rifle (Complete) O-rings set for the MDRX, including each o-ring inside the gun and the gearbox. 2?1 70? NBR ? 1 piece 6?2 70? NBR ? 1 piece 8?1.8 FKM ? 1 piece 8?2 70? NBR ? 2 pieces 8?2 PU ? 1 piece 22?2 FKM ? 1 piece 25?1 70? NBR ? 1 piece Suitable For Silverback MDR-X Series Electric Gun AEG Airsoft Rifle