... rifling 18 will conventionally be about one turn per hundred inches and the ... For a typical 30 mm gun barrel about eight feet long, smooth borebreech section 26 ...
BRS-99 with short PM-98 barrel. BRS-99. BS-1 30 mm silenced grenade launcher ... Canadian inch pattern C1 SUIT Sight 7.62 NATO. Cane Gun Collection ...
Barrels, gun (i.e., 30 mm or less; 1.18 inch or less), manufacturing. 2927. Barrels, gun (i.e., more than 30 mm; more than 1.18 inch), manufacturing. 2927 ...
... manufacturing small firearms having a bore 30 mm. (or 1.18 inch) or less, and parts for small firearms. Also included ... Barrels, gun: 30 mm. ( or 1.18 inch) or ...