Pellet gun (3,5)
I believe the answer is:
air rifle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pellet gun</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for air rifle that I've seen before include "One shoots pellets" , "Pellet firer" , "Pneumatic arm" , "Pellet gun" , "Shooter" .)