I have had several Benjamin pumps, garbage. Have a Hill MK3 too expensive, rebuild kits are expensive. No customer service. If I had to pump now, I'd buy a G6 or check out the Bull pump they're mentioning above. Oh, and the moisture trap on any hand pump is a gimmick joke. Pump in a room where you have a dehumidifier on and below 50%. At least that's my way & no rust in gun or pump after 10 years. I'm waiting on Crosmans compressor; but if it's ANYTHING like their Benjamin pump, I won't be buying it.
In China, they don't care about patent infringement so much, and many of their products are coming up in quality, low in price. In the airguns world I've learned this. Something new & better is right around the corner, and NEVER be a Beta tester if you're not the gambling type, have money to loose.