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6/16/2012 6:57:57 PM EDT
Hello all. Just looking for suggestions on a good, reliable and reasonably priced LPK for an upcoming build. Thanks.
6/16/2012 7:02:35 PM EDT
[#1]
I like RRA.
6/16/2012 7:04:55 PM EDT
[#2]
What do you like about it?
6/16/2012 7:46:22 PM EDT
[#3]
I find them to be of a high quality, and after using several of them I've always found the quality to be consistent.
6/17/2012 11:17:54 AM EDT
[#4]
Thanks man. I appreciate the input.
6/17/2012 11:22:49 AM EDT
[#5]
Although I have yet to receive mine or see it in action I had a lot of good reviews for Palmetto state's LPK which is at a very reasonable price.
6/17/2012 12:40:44 PM EDT
[#6]
I highly suggest a Stag/CMT LPK. I have used just about all standard LPK's out there and the Stag's have by far been the best and have consistantly had the best out of the box triggers of any brand....<><....:)
6/17/2012 12:55:07 PM EDT
[#7]
Quoted:
I highly suggest a Stag/CMT LPK. I have used just about all standard LPK's out there and the Stag's have by far been the best and have consistantly had the best out of the box triggers of any brand....<><....:)

I used Daniel Defense on my last build. Excellent.
They are hard to find lately.


On the Stag/CMT was it Stag branded ? (I know that Stag is retail CMT)
6/17/2012 6:49:42 PM EDT
[#8]
Stag branded....<><....:)
6/19/2012 9:41:03 PM EDT
[#9]
Quoted:
I like RRA.


I've used 3 RRA LPK's without any issues, and would recommend them as well.

Their triggers we're all decent too, much better than my buddy's Colt and DD triggers. (GI type trigger, not talking about RRA's two stage)
6/19/2012 9:43:07 PM EDT
[#10]
PSA MOE lower build kit.
6/19/2012 11:14:59 PM EDT
[#11]
I'm still pretty new to the AR world but the first LPK I bought was a PSA LPK and IMO it was pretty good.  Put it in a PSA lower.  When I whiched to a Spikes lower, I bought a Spikes LPK to put in that.  I ended up taking the Spikes LPK out and replacing it with the PSA LPK.  

I now have replaced the FCG from the PSA LPK with an ALG Defense QMS trigger.

So....what I would probably do next time is get a LPK without the FCG and get a  ALG Defense trigger.
6/20/2012 6:03:05 AM EDT
[#12]
I've always used Rock River lower parts. I like their 2 stage trigger too. It's a huge step up from a stock trigger and not terribly expensive. Worth while in my opinion.

There was a pretty good sounding report of Stag lower parts so I will price check Stag and compare to RR next time.

RR parts have a nice durable finish that doesn't mar. For instance on the ends of the take-down pins when using a bullet or something to push them out. I've used some lower parts a few years ago from Model1Sales and the finish scratched easily on the take-down pins when using a bullet tip. This is minor and damn near insignificant, but significant enough to where I chose to use RR parts from then on.

Most lower parts kits should work fine. There are some minor differences though.
6/20/2012 12:25:55 PM EDT
[#13]
I've built dozens.

I had a preference for DPMS parts kits, then switch to Stag because of price.



Lately I've started using R-Guns stainless kits.  I was genuinely impressed by the quality and smoothness of the pins as well as the mating surfaces of the hammers & triggers.  I consider them worth the extra cost as compared to Stag.


 
6/20/2012 1:06:22 PM EDT
[#14]
I use the cheapest I can find of the many quality LPK's. DPMS, RRA, CMMG, Stag Etc. In my case those have been DPMS, but the others look to be very good quality too.
6/20/2012 1:57:57 PM EDT
[#15]
I've used a Daniel Defense LPK and the quality is excellent and everything fit. I also have a Spikes LPK waiting to go in a lower.
6/20/2012 2:48:46 PM EDT
[#16]
I've used two PSA/MOE LPKs. They come with a MOE grip and Magpul trigger guard.

Good price. Good products.
6/20/2012 3:28:04 PM EDT
[#17]
OP everyone has favorites when it comes to LPK's. things to consider are what type of roll pins, small parts fitment, trigger crispness, these are things i look for personally. i've assembled with it seems most every brand out there. the LPK's i am most impressed with are in this order. Daniel Defense, Stag/CMT, J&T, PSA, Rock River w/2 stage trigger. would also try another CMMG after they came into a thread and clarified some info. on their triggers.

i have very little luck with some other brand that other ARFCOMMERs love, but i do have pretty bad luck sometimes.



6/21/2012 11:27:33 AM EDT
[#18]
CMMG's that I picked up last month had little to no machine marks on the working surfaces and the whole thing went together well.  The only changes I made were the slight bend to the hammer spring's legs.  It went into a S&W M&P15 lower without a problem.
6/21/2012 11:51:35 AM EDT
[#19]
I only use Colt LPK's. I tried PSA, RRA and DPMS and the Colt's are just better in the quality control department and consistency
6/21/2012 4:21:27 PM EDT
[#20]
i went with a DPMS because it was recomended to me by seekins when I started my recent two seekins lower builds. (they were out of lpk) Although the safety selector, trigger, trigger/hammer pins and bolt release were not used from the lpk just because i ended up using a mega trigger, badass ambi safety selec., kns anti walk pins, and the new seekins billet ambi bolt release and seekins billet mag release button.
6/21/2012 6:15:39 PM EDT
[#21]
Surplus Ammo has DPMS LPKs for $50 right now.
I have used DPMS and CMMG.
The DPMS kits were nicer, the finish was superior, and the trigger guard roll pin in the CMMG is a cruel joke.
As for the FCG, I always hit the sears with an oilstone and some chrome polish to remove the grit and a setscrew in the pistol grip screw hole to limit the trigger travel.

DPMS LPK @ SAA

Joe
6/22/2012 5:34:55 PM EDT
[#22]
Thanks everyone. Much to consider here. A buddy of mine bought a new complete RRA lower from Shooters here in Jax and I must say that the trigger was AWFUL. It had the grittiest, longest creep I have ever felt and that makes me hesitant to buy a RRA LPK. I realize that these stock triggers can be polished and cleaned up at home, but I would think that a new, out of the box trigger would be better than that. I've still got plenty of time to decide...
6/22/2012 7:28:18 PM EDT
[#23]
The best out of the box trigger I have gotten was in  double star kit.  However, I would guess they have multiple suppliers and it's hit and miss on triggers... actually that is probably true of all.
6/22/2012 7:44:07 PM EDT
[#24]
Quoted:
Thanks everyone. Much to consider here. A buddy of mine bought a new complete RRA lower from Shooters here in Jax and I must say that the trigger was AWFUL. It had the grittiest, longest creep I have ever felt and that makes me hesitant to buy a RRA LPK. I realize that these stock triggers can be polished and cleaned up at home, but I would think that a new, out of the box trigger would be better than that. I've still got plenty of time to decide...

Why not go with the PSA kit minus FCG and then add the ALG trigger ?
$35 + $45 and you have an LPK with a good mil spec trigger and the hit or miss factor removed.
PSA Lower Parts

6/22/2012 9:58:32 PM EDT
[#25]
Great idea! I haven't even thought of that.
6/23/2012 3:06:05 AM EDT
[#26]
I have used a number of parts kits in various builds and I have found stag/cmt to be the best.

CMMG: decent for the price, detents are rough on first few uses but wear in ok, good bolt catch, trigger guard roll pin sucks, trigger break is average
DPMS: better quality than I thought it would be, detents are smooth out of the gate, nice finish on bolt catch, roll pins are good, trigger is gritty as hell
Palmetto: cheap not in price but quality, bolt catch is cheap looking and finish was horrible, detents were ok, safety was a long finger one and had lots of play with the supplied detent
spikes: good, but not worth the price I paid. trigger was similar in pull to the CMMG, detents were good, finish on parts was nice, long finger safety had a little play like the palmetto but not as bad
CMT/Stag: best one for its price, detents are smooth as is the trigger, bolt catch and safety are superb in finish and function, roll pins were best of all these kits


I am trying an armalite kit less trigger next, and IMO the DD kit doesn't seem worth its inflated price so I don't think id try one at all.

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