Details: These are FRUS O-rings imported from Gungineer Airsoft Works in Japan.
The FRUS O-rings are FKM-based and specially processed. The friction is less than 1/5th of an NBR O-ring. Aluminum, Brass, and Stainless Steel are particularly effective Cylinder materials for use with these O-rings.
Tested in Ishioka's DSG past 130,000 cycles and showing no signs of wear!
The FRUS O-rings are FKM-based and specially processed. The friction is less than 1/5th of an NBR O-ring. Aluminum, Brass, and Stainless Steel are particularly effective Cylinder materials for use with these O-rings.
Tested in Ishioka's DSG past 130,000 cycles and showing no signs of wear!
Current Reviews: 1
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