Walther P99 compact as duty weapon?
 

I am considering purchasing a Walther P99 compact as a duty weapon. I currently carry a Glock 19 on duty and a 26 off duty. I like the concealability of the P99 compact for off duty, and it would be allowed as a duty weapon on my dept. (the glock 26 apparently doesn't have the min. 3.5inch barrel required for a duty weapon).
Two questions:
Does anyone know of a duty holster (nylon) that will fit the Walther compacts?
More importantly, will a magazine from a full size P99 fit and function in a Walther P99 compact ?