a stock would be easy I guess but an easy removable stock would be another thing.
The Marauder's stock snaps on and off pretty easy. I would just use the thickest kydex available.
hmm... I thought the stock actually replaced the grip and was screwed in place. guess I should've know since I think it was mentioned that it was the same stock for the 1377. at least I think thats what I saw online.
but yup... some properly molded kydex would probably do the trick.