cant figure out 1911 .bnk

i got a request to change the sounds of the m16 and glock in game to sounds from john wick 2 and i decided to change the 1911 sound aswell but i cant figure out which .bnk file is the 1911
i tried weapon_m45 first cause i thought maybe it meant colt M45A1 pistol which is a modern m1911 but it didnt work so i tried weapon_c45 like "colt .45" but it still didnt work
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Well i had the same exact thing (which occured mostly around desert eagle, beretta92fs and so on.) and i don't know what causes it, even by downloading the wwise tool from bitbucket gives the same result and i sadly don't know how to fix it.