both nice little pistols, the hi cappa kicks hard as it comes with a co2 and a green gas mag, works best with co2 mag but green gas is also good. the mk 23 is a mk 23... do i need to say more? good range and quiet and has an upgrade so you don't need to take the slide off to adjust the hop up.
the asking price is £200 with free postage (for uk)
and yes I can sell separately for £150 each but as you can tell you get a discount for buying them both!!