2 x FKM O-ring 58 x 2mm

Does the exact job it needs to do?

Fit perfectly on my Smolik Avenger head

An American product done right with great service.

Great product and great service. 1. It brought me to .9 squish with no decking 2 creates an excellent seal. 3 my rings wear lost in 4he mail so immediately Ethan shipped out more express. He also responded to technical questions not pertaining the product with no obligation to. I trust smolik perfomace with my money. You should too.