So GavinFuzzy has posted the pump action kit, woot. Not sure how long all the pieces are going to take to get here. In the meantime I got a little impatient and did some futher modding of the mk2.
I cut the breech load area to remove the V, with the worker 22s the darts were being deformed and I added one of the lock springs to the catch spring area, above the air chamber. This has resulted in making the Recon MK2 a semi reliable pump action shot, with no trigger. Not exactly slamfire because you dont need to hold the trigger down to fire. Just prime back and forward and it fires.