The breech area on any gun is the area where the pellet / bullet / BB is loaded into the barrel. The bullet stays here until the trigger is pulled.
While I cannot be completely sure, the Crosman Stinger P9 seems to be based on the Walther P99.
See the link below.
No, they are too small and will jam the gun. Never try to use metal bbs in airsoft guns or vice versa.
If the airsoft gun is around 300fps it can easily break skin at a close distance.
No, it is a spring rifle
Contact Crosman. Email them. They should be able to help.
See the link below for the airguns they currently have.
You have to make one
Yes it is. By the way, any airsoft gun under 600 fps with an orange tip is legal. It doesnt even have to be clear. (Cant ship to Canada without it being clear though)
you must have had it cocked and it was ready and locked in but when you undid the mag it released it and the bb falls out just dont cock the release the mag
I don't know if this will help by I would contact Crosman directly and ask them. (See the link below for Crosman contact page,)