Even though you said you bought it recently, it depends on if the rifle is a centerfeed or not, as to whether you will readily find the pieces and parts to do what you want. To my knowledge, the 10FCP rifles were centerfeed, and not staggerfeed. If it is a centerfeed, then you have the 4.4" action screw spacing, you have a few options to choose from.

AI type magazines - CDI bottom metal
Snydermags.com - utilizing the factory bottom metal
Dark Eagle - utilizing the factory bottom metal

I hope this helps a bit.

DK