I have an older model 12 BVSS that has an internal blind mag. (the mag is attached to the receiver when it's removed from the stock). I would like to convert this to a DBM. Is it possible to do this?

For a second question, I may want to drop this setup into an XLR chassis system if I can scrounge up the funds. Is it possible to do this or does the older style rule this out?

Thanks all.....