SMK PW900 I bought one in.177 and it is very accurate and running at 11.5 with Crosman heavies.
It also runs very well on Polymags.
Fettled the trigger and put sling swivels on it,a 10mm silencer adaptor and Hog mod.
Far better than expected,so much so that i have bought another in .22 ..accurate and at 11.7 with AA field.
I was going to build a small Rapid ,but now i won't bother these two will do the jobs i need them for.
Shot a few rabbits and pigeons with the .177, not used the.22 in the field yet.