Crosman Seal End #38-128 (Donut style)

After 1976, Crosman wanted the customer to buy a new style piecer pin and switch to the new “donut” style 38-128. The donut style is used on many other Crosman models such as the 357, 1077, 338, 454...

You are buying the NEW style face seal (donut), made with NinjaTek TPU. NinjaTek TPU is a amazing material that takes a beating and never gives up.

My o-rings and valves are way tougher than traditional rubber o rings. Some benefits of NinjaFlex...

NinjaFlex TPU is made in the USA.

Shore Hardness = 85A

Truly flexible (no fill or layer manipulation required to achieve performance)

660% elongation allows for repeated movement and impact without wear or cracking

Polyurethane composition allows for excellent vibration reduction

This is the same best selling seal as in my 38T/C kit.