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Originally Posted by PieOats
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Also, you linked to 80lower. 80% lowers are not legal in some states and subject to additional regulation in some others, so keep that in mind. You can still build a firearm using an ordinary serialized lower though if you happen to live in one of those jurisdictions.
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For some reason that link isn’t working now, but the site more or less gave a breakdown of muzzle velocity compared to Barrel length. It seems that the sweet spot is right around 16 inches, anything longer seems to cumbersome, anything shorter causes loss in velocity.
That said, most of these AR kits are advertised as 16 inchers but the barrels themselves are only 13.5 plus a muzzle break. I imagine that a 2.5 inch muzzle break isn’t going to add to velocity the same as another 2.5 inches of rifled barrel.
What have you guys found is a decent barrel length? Is 16+ too cumbersome?
PS. I’m not planning on buying an 80% lower. By the time I mill everything out and get the jig to do it, I’d be spending more time and money then if I bought a 100%. I don’t like the idea of the Gov knowing I have one, but at this point, there are so many ARs in circulation, I have a hard time believing they will ever ban them.