[Deat_Itself]

Код:

	if (strcmp("/buygun", cmdtext, true) == 0) {
SendClientMessage(playerid, COLOR_BLUE, "Useage: /buygun <gunid> Check gun ids in /shop");

if (strcmp("/buygun 1", cmdtext, true) == 0) {
      GivePlayerMoney(playerid, -500);
      GivePlayerWeapon(playerid, 22, 500);
return 1;
     }

return 0;
}

try this one it works fine.