Manufacturer: TNT Airsoft
Hardness: 60
Material: Rubber
Compatibility: Works with all inner barrels with conventional AEG hopup window
Package Includes: 2x Buckings

Features:

• Durable rubber construction
• Drop in upgrade component
• Shaped BB channel directs your rounds more consistently
• Designed to handle heavyweight BBs without issue
• Strengthens the overall structure of your hop-up system, preventing failures due to the bucking