sm ith ▁that ▁services , ▁rep airs ▁or ▁mod ifies ▁air g uns ▁rather ▁than ▁fire ar ms . ▁The ▁term ▁is ▁most ▁commonly ▁applied ▁to ▁those ▁who ▁work ▁on ▁paint ball ▁guns ▁( o ften ▁called ▁markers ) ▁but ▁can ▁also ▁apply ▁to ▁those ▁who ▁service ▁pel let ▁or ▁BB ▁guns . ▁ ▁About ▁ ▁P aint ball ▁There ▁are ▁four ▁types ▁of ▁air sm ith s : ▁gun ▁te chs , ▁cert ified ▁gun ▁te chs , ▁air sm ith s , ▁and ▁cert ified ▁air sm ith s . ▁A ▁gun ▁te ch ▁is ▁someone ▁that ▁knows ▁enough ▁about ▁paint ball ▁guns ▁to ▁be ▁able ▁to ▁dis ass emble , ▁re ass emble , ▁and ▁trouble ▁shoot ▁any ▁marker . ▁Gun ▁sm ith s ▁are ▁located ▁at ▁every ▁paint ball ▁store . ▁A ▁cert ified ▁gun ▁te ch ▁has ▁these ▁same ▁skills ▁but ▁has ▁also ▁attended ▁courses ▁put ▁on ▁by ▁the ▁marker ' s ▁manufact ur ers ▁to ▁work ▁their ▁guns . ▁Most ▁air sm ith s ▁will ▁fit ▁into ▁either ▁of ▁these ▁two ▁categories . ▁ ▁A ▁true ▁air sm ith ▁is ▁a ▁gun ▁te ch ▁and ▁also ▁a ▁mach in ist . ▁This ▁means ▁they ▁are ▁able ▁to ▁make ▁a ▁marker ▁from ▁scratch . ▁If ▁there ▁is ▁a ▁problem ▁with ▁the ▁a ▁marker , ▁a ▁true ▁air sm ith ▁should ▁be ▁able ▁to ▁make ▁a ▁replacement ▁piece . ▁A ▁cert ified ▁air sm ith ▁is ▁an ▁air sm ith ▁who ▁has ▁obtained ▁a ▁gun ▁te ch ▁certificate ▁from