My X50 RAP certainly seems to of been modeled nicely after the P226... thus far its fitted in a kydex and leather waistband holster.
My most recent purchase I had not came across before - the 'rare' CAA RONI Carbine Kit.
I struggled to find the kits for some time after being made aware of them; there is a version for Glocks that also fits the RAP4 Combat but the p226 model seemed especially elusive (recently a steady supply of overpriced versions have appeared on ebay).
Designed for for airsoft gas blowback P226's... I assumed that the RAP4 RAP X60 as a gas blowback P226 replica would also fit inside the kit, so when I found a cheaper then average import from China I considered it a risk worth taking... as all internet research failed to find another instance of the kit being used on a paintball gun.
As you can tell from the pics (sorry for the poor quality, cell phone pics)
When slotted into the kit; it upgrades the pistol with; Extending shoulder stock and cheek rest, flip up sights, folding foregrip, share magazine holder (which will require some modification but should hold at least 3 X50 mags) and 3 20mm rails.
Now I just need to work out a refined method for making my own powder balls using this .440 cal musket ball mold I researched... that is a 11mm sphere (between 00 and 000 buckshot sizings) and just happens to be perfect .43 cal paintball round size.