I just put AGrip on my P99 QA and I really like it.
I used the HK USP model of AGrip as there is no P99 version as of now. The changes I had to make included cutting two wedge shaped notches on both sides of the bottom of the back side of the grip. It ended up looking like a fan or bird tail. This was to compensate for the way the P99 grip tapers off near the bottom (unlike the USP). I also trimmed off the part that stuck up under the slide release.
That was about it. Feels good. For those who don't know what Agrip is, its a velvet like material that you wrap around your grip (held by stickey layer), that doesn't add any width to your grip. It provides a good griping surface when wet and it doesn't stick to your cloths when drawing from a holster. Below is the web page for Agrip.
http://www.brookstactical.com/
I used the HK USP model of AGrip as there is no P99 version as of now. The changes I had to make included cutting two wedge shaped notches on both sides of the bottom of the back side of the grip. It ended up looking like a fan or bird tail. This was to compensate for the way the P99 grip tapers off near the bottom (unlike the USP). I also trimmed off the part that stuck up under the slide release.
That was about it. Feels good. For those who don't know what Agrip is, its a velvet like material that you wrap around your grip (held by stickey layer), that doesn't add any width to your grip. It provides a good griping surface when wet and it doesn't stick to your cloths when drawing from a holster. Below is the web page for Agrip.
http://www.brookstactical.com/