• Winner! Quick Shot Challenge: Caption This Sniper Fail Meme

    View thread

billet or forged upper receiver?

Re: billet or forged upper receiver?

It's really down to such a science I don't think you would go wrong with either. As long as it came from a quality manufacturer. I've had both types and both types have shot well. I can't say specifically about those two manufacturers

Edit:

If it's machined it's usually really, really close in tolerance. Aluminum isn't hard on bits. The billet is machined down usually by CNC and the programs for those (and corresponding measurements) can be within .0005" or less.

The forging is kind of the same thing. various blocks, hammer and push through the billet to "form" the lower receiver. These blocks are machined right down to the nats-AZZ and when they are done are meant to produce close to the same kind of tolerances as machined billets. The difference is sometimes during the process they cool and stresses <span style="text-decoration: underline">could</span> (not always) to the billet.

For the most part both are very accurate nowdays.

Also, FWIW, The AR15/M16 is a very, very accurate platform. I've bitched in the past about the gas/function issues, but NEVER about the accuracy. How it's made has no bearing what-so-ever on reliability. Unless of course it's out of specs.
mad.gif


Find a good one and she'll shoot as accurate most times as you can.

-good luck