For-runner of Benjamin..
I used to have one myself.
It would shoot .177 pellets also,
but mine was smoothbore so not
very accurate. Mine died a really ugly death
so I no longer have it. I did take the barrel
off and after threading it for a Percussion
nipple from a muzzle loader to thread into it,
I made a Miniature in-line Muzzle loader!
It shoots lead pellets with nothing but the
force of the percussion cap. Pretty useless, but fun!