Custom 2k1 cocker
Anything that could have been upgraded was!!
It is very small, compact, light, and looks cool. If you ever need to rebuild it, it is exceedingly simple. It makes the front end of your gun look much smaller than most cockers, and really sweetens up the pnuematics.
I overpressureized mine by leaving my barrel condom over my back block and blew out an o-ring. It was no problem to replace, and MAC DEV customer support was top notch in offering any assistance I might have needed.
Get one. It closely resembles the new regs on the ORRACLE cocker so that must tell you something. Sweet looks, excellent performance!!!