The problem with a "cheap" striker-fired pistol is that there is nothing but a little manual safety lever holding the striker back...if you drop it, it likely would fire. I'm not a "Glocker" but I believe that the Glocks, M&Ps, XDs etc have other safety features built into them to prevent this.

As to the "Blowing-up", what's happening is fracturing of the slide or frame which allows parts to head for the shooter's face... It happens so fast that it looks like an explosion.

I had a Bryco .380 that was relaible and accurate....I started shooting it often. After 500 or so rounds I spotted a crack forming in the frame so I sent it back....Bryco replaced it but the gun I got back didn't shoot nearly as accurately as the original so I sold it off.

If you want to continue shooting that Jennings I'd advise that you check the frame & slide for cracks OFTEN...never use any +P ammo in it....carry with an empty chamber....and begin saving your money to eventually replace it with something better.

(...my 2 cents worth)