Koj yuav pom tej yam xws li IIIA thiab IV thoob plaws peb qhov chaw.Cov no qhia txog lub zog nres ntawm cov cuab yeej.Hauv qab no yog cov npe yooj yim heev thiab piav qhia.

IIIA = Nres xaiv rab yaj phom - Piv txwv: 9mm & .45
III = Nres xaiv phom phom – Piv txwv: 5.56 & 7.62
IV = Nres xaiv AP (Armor-Piercing) cov mos txwv – Piv txwv: .308 & 7.62 API