New- Benjamin Trail NP2 Piston Seal- Harder Material
Like the Walther seal but has a larger ID hole than normal.
1.141" OD average- regular size
And 1.146" oversized
Please select the seal from the option here.
Some guns may have vary large tubes because of variances of manufacturing and you should
measure before you buy.
On the oversized version we are using a softer material which will size easier or fit bad tubes better from the start. Better able to work in bad spec tubes.