I'm intrigued for a couple of reasons, Jules.Originally Posted by deejayuu
Although Aluminium is about a third of the weight of steel per cc, the aluminium section of the piston head shown is about two times longer than that section on the all steel pistons --- hence my interest in the piston weight.
The long Aluminium section could just be long to allow enough thread engagement in the steel body, but then it's strength has been compromised by machining a slot into it --- weird.
The other thing I've noticed this morning is that the piston head appears to be an O ring conversion which probably accounts for the gun's consistency.
All the best Mick
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