British Sten Gun Bronze Bolt Assembly: Original WWII Category_Martini-Henry Rifles The term M17 refers only

The term M17 refers only to the liner band

over 70 years old

all proof marks are single line

and will have pitting from wood contact

These examples were manufactured using zinc studs to engage the rifling

British Sten Gun Bronze Bolt Assembly: Original WWII Category_Martini-Henry Rifles The term M17 refers onlyOriginal Item: Excpetionally Rare; Who would have believed it? At the height of WWII the British War Ministry ordered, on an experimental basis, Bronze Gun Metal Bolt Assemblies. Amazing in that, as an alloy, the material cost was many times greater than that of steel. The reason however was machine time, which was a valuable commodity in 1943 (see "The Sten Machine Carbine" by Peter Laidler page 250 51. The Bronze bolts could be cast and then