I’m looking to buy a stripped lower and have researched many that seem to be good to go.
Searched around this forum and can’t find many that should be avoided.
Can ya’ll help me out on the ones I should stay away from?
Roggio Arsenal
The only ones I’d make a real effort to stay away from are the early cast Olympic Arms ones.
Yup, no real reason to buy one of those unless you are stuck in an AWB state.
With as many solid receivers are there are on the market, and the prices being so low, I can’t figure out why someone would want to save $10 or so on a lower.
Two year old thread that started 5 years ago. Unfortunately things are changing at light speed in the AR world and that info may not be current at all.
A better question would be, which lower should I buy, not, “which lowers to avoid.”
There is no reason in this day and age to get anything other than a Colt lower, since Grant is selling stripped Colt lowers, as well as complete Colt lowers.
If, for some odd reason, you refuse to buy a Colt lower, it seems to me that LMT, NRW, or BCM would be good options as well.
I wish anyone had a Colt in stock. (including Grant) That said, he does have Rainier lowers in stock for half the price of a Colt. I haven’t seen a bad word yet about Rainier lowers.
Why? Is $265 for a stripped forged lower, or $515 suddenly the marker which is set for a quality lower? I’ll take BCM, RA, Noveske or plenty of others in place of that.
I don’t doubt that Grant is charging a fair price based off what he is having to pay.
I would avoid any composite/ polymer/ carbon lowers like the plague. Most forged are gtg, however I personally have seen some spec problems with a rock river and a dpms lower.
No, the price has nothing to do with it.
The fact is that I trust Colt, and don’t trust many others besides Colt, with what experience I have. I can’t recommend many others, simply because I don’t have enough experience with the manufacturer, or, I have had issues with them.
I haven’t personally had this experience, but there is a ton of information on this board about RRA lowers being out of spec.
I will second this recommendation for avoidance.
Vulcan and Sonju.
Ok, there is a large difference between that, and what I got out of your other comment of, “There is no reason in this day and age to get anything other than a Colt lower”
There are plenty of high quality receivers out there, no reason to pay double the price unless you just like the Colt rollmark, and that is fine as well. 
I keep hearing this, but…
For some reason, I always wind up regretting it when I end up with anything other than Colt, it seems…
Until Colt ceases to be the rifle that all others are measured by, I’m going with Colt.
I’ve wasted enough of my hard-earned money on stuff that I regretted, and I don’t want to go through all of that again…
My LGS has a few of these lowers in the parts case for like $150…these lowers are crap and I’m not surprised they sell them. According to them; Colt, you’re paying for the name and their rack of Bushmasters, DPMS’S, Rock Rivers are the best…what a joke
I have been rolling with a Bushmaster lower on my BCM middy upper for years. None of the lower internals are Bushy, but the lower its self is 100% good to go. It is in spec, like every other Bushy lower I have ever seen, and this gun is my duty carbine. It has fired thousands of rounds and I trust it 100%. Nothing wrong with a Bushy lower. I will second the earlier comments about avoiding the Olympic Arms cast lowers as I have put together two for friends and they were both horribly finished and took tweaking to make them work.
There are so many different brands that are gtg in this day and age that you are just throwing money away by buying a Colt lower. Are cast Olympic receivers even an option anymore?
Can you give us a few examples so we can can avoid these lowers that you regretted buying?