I think the shop in Shangri-la (named Urban) carries SIGs. There are no HK's coming in (from the two gunstores I spoke with) this year. Most of the inventories are just the old stocks. Nashe has some and I think Advance Weapons or Caliber Trading has some.
There is one store that displayed a Kimber in the gun show. They are selling it for P 40,000 (yup, old stock) against Nashe's P70,000 +. When we got back after an hour (trying to decide) somebody already bought it. Lucky guy.