@beeingmyself
1. if you have the money to purchase a ptw/cw then i would go for it. very reliable platforms.(purchase a used gun since they are always cheaper)
2. the outer mag shell has nothing to do with the bolt stopping action. you can buy real steel pmags and dremel it to fit the inner mag casing or you can go to the ptw forums and purchase the pmag outer shell casing yourself.
3. most likely it will fit. i believe the ctr and ptw buffertube are commercial spec.
4. no they are not compatible with regualr airsoft rails. however you can purchase a special delta ring specific
