Steel 4mm Ball Bearing Set for Mad Bull / Pro-Arms / CAW / Matrix CO2 40mm Grenade Series - (Set of 8)
Accidentally twist off your grenade shell and lost the bearing? No worries, got your back.
Manufacture: Matrix / Madbull. Made In Taiwan
Material: Steel
Features:
Precision bearing measuring between 3.94mm~3.95mm
Rust Free.
Perfect sphere.
Set of 8 Ball Bearings
For: Madbull, Pro-Arms, Matrix, Craft Apple Work & other compatible 40mm gas grenade shells.