Hop-Up bucking made of an original mix of materials, by the Italian Psionic Upgrades brand. The manufacturer's offer includes many types of buckings adjusted to the standards of all manufacturers, as well as accessories that improve the operation of Hop-Up chambers.

THOR has a flat bucking tab that fits perfectly with the wide windows of the inner barrels.

Product features

- Proprietary material, no admixture of silicone.
- Temperature resistance up to -10°C
- Higher abrasion resistance
- High flexibility and adjustment to the barrel (better sealing)
- Increased friction compared to silicone, strengthening the curl of the BB..

Set contains
- THO-R bucking
- Spacer