Just a brief review of my experience with getting my ion modded to a pump. I sent out my ion, ccm pump handle and a 360 qev to get a ccm pump kit installed. There were delays but it was understandable since my marker was shipped out during the holidays.
Seller was in constant contact via phone/email. Pics were sent to me with updates. When I received my ion I was very impressed with the work done to it. Everything from the pump base to pump kit to trigger and mounts were machined professionally. Pump stroke was about 1/8 the distance compared to a regular full bodied sniper. Stroke is smooth, minimal wobble on trigger. Auto-trigger was accomplished by holding down the pump handle while continuously pulling on the trigger. I'm 100% satisfied with the final product and would not hesitate to recommend these guys to anyone who wants to do a conversion.