| 摘要 |
<p>An air gun comprises a magazine (632) with a plurality of barrels (634) with associated projectiles (670, 672). Air is compressed by a piston (623) through an outlet (637). The barrels are sequentially alignable with the outlet by an advancement mechanism (653, 664). In one embodiment, the magazine is normally biased with a spring (663) toward the outlet to create a seal (631) with the aligned barrel. Upon magazine advancement, the advancement mechanism counteracts the spring bias to reduce friction. In another embodiment, the outlet is slidable, under friction provided by the piston, into sealing contact with magazine. The gun may be mounted on a bow frame (900) to provide force to propel the piston.</p> |
