Crosman Magfire Extreme piston seal

[gem1]

Hi all any recommendations seal size od 1.184 id .539 on old seal has dovetail button on piston
the crosman seal seems too hard and a little to loose in air chamber. thanks Gary.

[Roadworthy]

Of course you may try to obtain your seal from Crosman but I usually get my seals from Air Rifle Headquarters.  They list the outside diameters of many if not all of their seals.  Instead of just measuring the outside diameter of your existing seal try measuring the inside diameter of the compression tube it goes into.  Another source for seals is Vortek.  https://www.airrifleheadquarters.com/page/page/251485.htm

[gem1]

Thanks much already got a seal from crosman but i don't like the way it fits.
i have the evp and correct part number will checkout  air rifle headquarters
thanks Gary.