Modify Accurate GBB Hop Up Bucking (TAN)

This Bucking is made out of 1st Class Aircraft Rubber
This is a high GRADE Hop Up Bucking which is really Accurate.

• Made of Aircraft Rubber.
• Improved air seal.
• Hardness: 60-65 degree.

Features:

1. Excellent extreme temperature properties
2. Improved air seal
3. Excellent compression set
4. Superior tear resistance
5. High abrasion resistance