Getting around to building the A@ version I have been thinking about. I have two choices for the lower an Anderson and a Bushmaster both with low round count, under 200 with 5.56.
Best lower to use?
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they have to do final machining on the forged lowers
but some companies still make them for othersjust some targets for printing
https://drive.google.com/drive/folde...xQ?usp=sharing
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I've used a lot of lowers over the years. Probably the most problematic were ones from Olympic Arms. Currently in my safe are 7 guns or receivers from 4 different manufactures from LaRue to Anderson Arms. All went together and do the job with no issues. As worthen86 said, I would use the receiver that gives you the best fit to your upper.Cliff
USN Ret., FPD Ret.
Nobody is coming. It's up to you.
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There are a couple philosophies (and more), regarding uppers and lowers. Its a quality upper that matters more, true to mate with the barrel which will impact accuracy the most.
The lower is the least important, it doesnt have the stress the upper does, so it comes down to style and weight. Of course, you want a tight alignment/lock-up with the upper and lower.
Otherwise its strictly your preference. You can get down to the minutiae. Flared mag wells? Adjustment screws for over-travel with the trigger, etc.? Pimping color palette. With the
world of sweet triggers out there, it a good matched set, and possibly weight that matter these days.
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I've learned to look at receiver sets, not individual receiver lowers or uppers.
They need to be considered together, rather than by themselves.
I've moved into preferring precision-machined forged sets, or billet sets after decades of basic forged sets.
For a military gun that needs to be easily shotgunned, I like forged sets that fit snugly, but still allow ease of push of the takedown pin.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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