Stick with the factory offering.
No
No
No
no
$250-$350
It will slide on to a newer p99 with the weaver rail (post 2004 i believe), but the notch is in the wrong place.
Cost, caliber and maker.
No
Some people use a Walther P22 for shooting practice purposes, some use just for a day at the shooting range. The Walther P22 is known for being fun to shoot and no recoil. Some use as a gun to protect their family.
Earl's Repair Service, Walther's USA site.
Walther uses a date code of two letters.
A 22 LR caliber pistol made by Walther, it is similar in design to the Walther P99.