For your consideration is this SCUBAPRO MK-5 in excellent condition inside and out with an IP of 130 + / - 2 that recovers immediately after each breath taken. This regulator was tank / IP gauge tested.  There is no weeping or creeping IP in this MK-5. Factually speaking it is rock steady, rebuilt mechanically and cosmetically a 9.99999999. It comes with a dust cover 2 HP, 5 LP ports and 2 LP plugs, 1 HP plug.   If you need more photos or have questions just write me and I shall Get back with you asap. 

Parts Replaced as follows:

All O-rings 

Piston O-ring

HP O-ring

HP Seat

Swivel Bushing

Swivel nut