I have a hill mk3. After a year it broke, got the hill mk4. Broke again. What I mean broke is, it's very hard to pump up, and it takes more effort to get to 3000 psi. So threw them away. End up getting a Yong Heng. About same price as an hill pump. Would never go back to pumping a hand pump. Trust me, once you step up to a compressor. You won't go back to hand pump. It fills a gun in 1-2 mins. Very fast. Try hand pumping a Marauder to 3000, possible but very tired. Now try pumping an 480cc bottle gun like an impact. You won't do it. I know I won't. Compressor is the way to go. There's even that hatsan spark for $377 that runs off 12v if you won't want to get a Yong Heng. Save a few more bucks and get an compressor. Just my 2 cent