3 Revolver), the Enfield Mk I/Mk II was complicated to unload, having an Owen Jones selective extraction/ejection system which was supposed to allow the firer to eject spent cartridges, whilst retaining live rounds in the cylinder.

The Enfield Mk I/Mk II had a hinged frame, and when the barrel was unlatched, the cylinder would move forward, operating the extraction system and allowing the spent cartridges to simply fall out.

The system was obsolete as soon as the Enfield Mk I was introduced, especially as it required reloading one round at a time via a gate in the side (much like the Colt Single Action Army or the Nagant M1895 revolvers).

[2] NWMP Commissioner Acheson G. Irvine ordered 200 Mark IIs in 1882,[4] priced at C$15.75 each,[5] which were shipped by London's Montgomery and Workman in November that year, arriving in December.

[8] Complaints began arising as early as 1887, influenced in part by the British switching to Webleys,[9] and by 1896, hinge wear and barrel loosening were a real issue.