[Konstantinos]

pawn Код:

GetWeaponMagazineAmmo(weaponid)
{
    switch (weaponid)
    {
        case 22: return 34;
        case 23: return 17;
        case 24: return 7;
        case 26: return 4;
        case 27: return 7;
        case 28: return 100;
        case 29: return 30;
        case 30: return 30;
        case 31: return 50;
        case 32: return 100;
        case 38: return 500;
    }
    return -1;
}

The usage is: GetWeaponMagazineAmmo(weaponid) * how many magazines

An example to set to 46 magazines to your m4 weapon:

pawn Код:

SetPlayerAmmo(playerid, WEAPON_M4, GetWeaponMagazineAmmo(WEAPON_M4) * 46);

which makes it 2300-46