In addition to performing all functions of Level I Gunsmith, the level II usually requires attendance at factory Armorer's courses of small arms in the arms room inventory, performs major repairs on foreign and domestic standard and non-standard small arms weapons, can build either custom pistols or rifles with little or no supervision, possesses excellent knowledge of gun-smiting tools and procedures, and possesses moderate knowledge of firearms operating principles and ballistics. This worker has a thorough understanding of firearm operation principles, has a moderate knowledge of internal/external ballistic theories, can fabricate special jigs, fixtures and other special tooling with some supervision, can read and understand blueprint drawings, and can work from those drawings under direct supervision. The Gunsmith II can perform as primary instructor on most standard and non-standard small arms weapon systems. This position may require computer literacy.