Upgrades for C02 .177 CPSport Walther P99???

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Ven · #1 Post by **Ven** » Sat Oct 15, 2005 7:09 pm

Hi guys, is there anything I can do to improve the FPS performance of this pistol? It looks like maybe the valve in the C02 mag is adjustable? I appreciate any ideas or input. I really enjoy shooting the gun, I just need a bit more power from it.

http://www.crosman.com/site/catalog/walther/cp_sport

airgunfun · #2 Post by **airgunfun** » Sat Oct 15, 2005 7:32 pm

Nonr that really know of. Awhile back, someone suggested adding some weight to the hammer but I don't know about that.