Not sure who makes the lowers for RRA now but the old ones were CMT and were fine. I'd expect the new ones to be as well. Maybe its magwell isn't as flared as others, maybe it is. That is the only thing I'd think one would notice. Now personally I'd ditch the rra star safety as I've always hated it. If it had their 2 stage trigger I'd want it out as well as I had a bunch of friends with them and they all failed(this was years ago, maybe they fixed them). The only big thing that RRA did in the past that pissed me off was that they used a commercial spec buffer tube and ****ing used red thread locker on it instead of staking. Not sure if they still do that or not as I haven't seen a complete one in years.
Really though unless something is wrong with the RRA lower or you don't like something about it(in my case their star safety) shoot it and rock on. No need to replace it unless you just hate the roll mark or something(or the company after the stuff they pulled)
You can feel the difference.
I've noticed issues with the feel of some of the pins in cheaper kits. I've swapped PSA springs and detents for colt or armalite ones and the takedown pins feel smoother(usually replacing the takedown pins as well). It was something I wasn't really expecting until I helped some friends assemble lowers and noticed it.
Using a sionics, bcm, colt, or something like lmt parts and the issue goes away. Triggers were another area although now the pnt triggers in like the bcm or sionics kit is just a no brainier unless you are going to use an aftermarket. In the past the LMT mil spec style triggers always felt better to me than most others.
The number of folks on my Full Of Shit list grows everyday
I am American
This is what I would do. Or better yet, get one of the Colt lowers currently in stock at Brownells:
https://www.brownells.com/rifle-part...rod109740.aspx
But I agree that there is no reason to get rid of your perfectly good RRA lower.
Last edited by Tx_Aggie; 03-19-18 at 12:44.
Add a few beers afterwards, and access to some good looking women, and you have a slice of heaven there.
Count me in on that hoodrattery.
I wonder how an Aero lower parts kit stacks up in terms of coatings and durability when exposed to seawater? Or ALG. Or anyone, for that matter. Considering a fate involving seawater, I can see why one would say "Colt", and then the conversation stops. Unless, that is, you know of a maker that specifically uses saltwater resistant coatings for all of their parts.
I can see how an in spec lower is, or should be the same manufacturer to manufacturer.
I can also understand how LPK's could wildly different in the quality of fit, finish and coatings.
I've handled perhaps tens of thousands of machined parts in my civilian career, with a decade or so of experience, you can sometimes pick out the duds that made through QC by looking and feeling the quality of the machined pieces.
I bought an out of spec lower that came with a safety detent hole cut shallow and too narrow during the bad years a decade or so ago.
If my LPK started rusting due to exposure after one event, salt water or not, I would be pissed.
Last edited by Averageman; 03-19-18 at 15:18.
I'm thinking of trying out the Voodoo VDI LPK's.
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