Quote:
Originally Posted by Floreos
Here is a definitive answer for you. At least accuracy wise.
You will not see any more accuracy/consistency benefit after 450mm length. This is kind of the sweet spot that allows your spin from your hop up to stabilize but not so much as to start having irregularity down the barrel.
That being said if you need a smaller one for cqb you will probably fine.
Edit: if you're an aeg player you will need to match your cylinder volume. (I'm not an aeg player so I'm uneducated about the subject.)
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The length really won't effect the accuracy at all. The quality/consistency of the bore of the barrel and a quality hop rubber and BB'S of a heavy enough weight will.
My mp5k I had, with a pistol length barrel, could shoot as far as my m4 with 510mm inner. Both around 400fps both with promy flat hops. There was maybe a slightly better grouping at max range with the longer barrel. But the stock on the long gun could likely be the difference.