Uya kubona izinto ezifana ne-IIA kunye ne-IV kwisayithi yethu.Ezi zibonisa amandla okumisa isikrweqe.Apha ngezantsi kukho uluhlu olulula kakhulu kunye nengcaciso.

IIIA = Iyayeka ukukhetha iimbumbulu zepistol – Umzekelo: 9mm & .45
III = Izimisa khetha iimbumbulu zompu – Umzekelo: 5.56 & 7.62
IV = Ukuyeka ukukhetha i-AP (i-Armor-Piercing) iibhulethi - Umzekelo: .308 & 7.62 API