DannyinJapan said:
Actually, I had that same airgun years and years ago. (it sucks)
But I have seen it used as a prop gun in photos and on DVD cover art many times.
To a sheeple, it probably looks real enough. To a cop it probably looks way too real.
To a gun-nut like me, it is instantly recognizable as a crappy 20$ bb gun.
Actually, I'll have to disagree with Danny on this one. I got the same gun when I was 12 in 1968, and it cost $9 at the time. It is shaped roughly like a 1911, with a release lever in place of where the safety would be for the slide. Pull back the half slide and push forward and it cocks the gun. The front of the barrel tips up and can hold about 18 or 20 BB's as I recall. After cocking, you tip the barrel up and then down and a BB rolls down into the mouth of the barrel sleeve. The gun will also shoot single loaded .177 cal. pellets or feathered darts.
I put conservatively 5000 BB's through mine, and could literally shoot a fly off the wall with it at 20 feet, and spent hours doing so believe me.

I carried it everywhere, and it taught me how to shoot. I upgraded later to a 300 BB capacity 350 FPS Crossman CO2 pistol, but this little Marksman was still used. I'm guessing the muzzle velocity at around 250 FPS max. I was very well made for the cost.
In 1978 or '79 I wrote to the Mfr. and bought a new piston and barrel sleeve and changed out the piston myself (which they did not recommend doing on your own but sending it in) and still have it today in the original box with the manual, the original parts, etc. At close range it is still a fun gun to shoot at paper targets, etc. For a kid's first BB gun it is ideal, and the darts make it more fun. I had to send away for the darts and pellets when I was a kid, but now I think they provide them with a little target with the gun.
I know, it's only a cheap BB gun, but at the time it was my most prized possession and I remember it very well.
Norm