go to: GTA V>>update>>update.rpf>>common
data>>ai
replace the weapons.meta
go to: GTA V>>update>>x64>>dlcpacks>>patchday3ng
dlc.rpf>>x64>>models>>cdimages>weapons.rpf
replace the w_pi_appistol.ytd w_pi_appistol_hi.ydr
go in the game and have fun