USA
HK
MX
Replacement O-ring for T4E CO2 Quick Piercing Magazine
OD = 20.5mm Thick 3mm
Compatible with the following
H8R Revolver .50 Cal Pistol T4E TR50 HDR50
Double Barrel Paintball Shotgun T4E HDS
T4E HDB .68 Caliber Paintball Shotgun
HDR50 TR50 HDS HDP HDB Air tank And Remote Line Adapter