I have only good words for Sixmm. They have a very good choice of items. The quality of those items are dependent on the manufacturer not the shop. For my needs I put Sixmm in my top 4 sites to go to for my GBBs. Support isn't bad, it's not the absolute best , but they do their best. If you are looking for items to customize or straight up pimp yr airsoft pew pew, then Sixmm should be on yr go to list.