Charlton Machinegun

[browningautorifle]

I had deliberately bored the gas port a tad undersize so that I could tune it, rather than have the problem of too much gas volume and let it beat itself to death.

Good, it's hard to go back once you're over gassed.

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[tiriaq]

Good, it's hard to go back once you're over gassed.

A fix would be to fit a little bushing, like that in the Ruger Mini-14.

Charlton trigger mechanism is clever - there is a little plunger which is pushed down by the locking lug as the lug finishes rotating to the locked position. There needs to be a relationship between the locking and trigger mechanisms in a locked breech automatic firearm.