Get a pig. There needs to be more people prepared to lug a dirty great ammo spunking gun about. If the ASG one is a rebrand of the A&K, save some money and just get the A&K. If money is NO object - get the LCT one.
Pretty sure G&P do them too. I guess it depends on whether he wants an E4 or a VN. Having said that they may be out of production, I can only see old links for them