Quote:
Originally Posted by SuperHog
Well there are numerous articles on the internet stating that 400mm to 450mm inner barrel length is the sweet spot for airsoft barrels.
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*is the sweet spot for a
full cylinder*
I don't know how or why people interpreted that as 455mm being the ideal barrel length, it's JUST the ideal barrel length for a full cylinder.
Also, just because a gun has a 20" outer barrel does not mean you need a 20" inner barrel. All the systema ptw M16s come with 14.5" barrels