Fig. 235.
Fig. 236.
The ends of the elastic cord can be fastened to screw-eyes at the muzzle. A piece of leather thong or cord inserted at the middle of the upper elastic cord will wear better than the rubber at that point.
Another form of trigger is shown in Fig. 235, which can also be made of stiff wire (Fig. 236).
Fig. 237.
To finish the gun nicely, it should be scraped (see Scraper) and sandpapered with fine sandpaper (see Sandpaper). It can then be finished with oil and shellac or varnish (see Shellac, Varnish, Finishing).
These same methods of construction can, of course, be applied to a pistol.