I too loved those good old days.
You used to be able to walk into may hobby stores and buy Blow back kits...
And many of the built Blow back models.
I too wish I had held onto the ones i once had, like a Automag, a M16, Walter P38.
Sadly they are buying a lot of Denix models, and a lot of Colt 45s with incorrect cylinder indexing notches..the correct ones look like acorns the bad ones have either slots, small notches or none...Their LaMat is also poorly made.
Their Bland firing Walter P38 has horrible markings and a single action trigger not the real double action of a real gun.
Sadly MGC is gone but Denix is still around:
Denix Replicas
And a lot of the Japan air soft.
Rich
PS Well I got to thinking and remembering why I sold off those old Blow Backs...The problem was like the M16, which could go full auto was the reloading time..
You would go full auto and run off the 10 or so rounds in a few seconds..great fun BUT then you crawing around on your hands and knees looking for all of your spent ammo..then you had to unscrew the nose, and remove the cap (caps in the M16), clean the powder from the bullet, then reload a cap (or caps) and rescrew on the nose., and then reload your mag.
So for a few seconds of fun you spent about 1/2 hour reloading...
And heaven help you if the super fine thread got a little messed up.
Air Soft is so much better, the BBs are super cheap, and with either gas or electric drive again more fun, and with both you don't even need BBs for a fun prop weapon.
Hine sight can be a little blind...second hine sight can remember why.
Which I just did.