I need help identifying these Bren parts please. Round firing pin?

[stencollector]

Breech block is the same pattern as the Czech ZB vz39 which the HK mark helps ID it.Round profile firing pin and insert also as ZB vz39 for 8 x 56R .
If the piston extension/carrier is also marked 11481 this is also probably vz39 ,Inglis serial number would have had a 'T' in a 5 digit serial number - 1T1481 or 11T481.
ATB Kevin

Yes and no on the T in the serial number. The early Inglis Brens used the series letters M and then N. The standardization to the letters signifying the location of North American production (T for Toronto) didn't come into being until a bit later. But you are certainly right that there should be a letter in there.[COLOR="Silver"]

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