Yo Wolf...What makes you think you need a drooper.
I use the Sun mount myself. NervousTrigger even made up a write up about installing and adjusting it. I don't know if it's the best but it is well thought out. I'll attach a chart so you can see the options.The mount itself is designed and engineered by Sun, near Dallas. It is manufactured for them in China. If you elect to get them, drop me a line. There are a couple of things to watch out for and I don't know if Jason has incorporated them all into his instructions.
im using leapers 2pc med rings work great for the nil recoiling gun.Josh