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Posted: 9/10/2011 6:26:39 PM EDT
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AIM has a CMMG LPK for $55 and a Daniels Defense LPK for $80
What does the extra $25 get you? |
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I dont know about those 2, but I know a stag lpk vs a palmetto state armory lpk there is a BIG difference. Stag is a MUCH nicer lpk than the psa, and sadly I have the psa lpk on my higher quality build.
The differences are the roll pins, the bolt catch, the selector switch. Theyre just nicer in the stag kit. |
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I dont know about those 2, but I know a stag lpk vs a palmetto state armory lpk there is a BIG difference. Stag is a MUCH nicer lpk than the psa, and sadly I have the psa lpk on my higher quality build. The differences are the roll pins, the bolt catch, the selector switch. Theyre just nicer in the stag kit. What do you mean by "nicer"? |
| Yea I'm having a hard time explaining it lol. The stag bolt catch lever is rougher feeling and looks like a rougher machining, while the psa is smoother and rounder. I like the harsher edges on the AR better, I'll try n get some pics up tomorrow to show the difference. |
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Yea I'm having a hard time explaining it lol. The stag bolt catch lever is rougher feeling and looks like a rougher machining, while the psa is smoother and rounder. I like the harsher edges on the AR better, I'll try n get some pics up tomorrow to show the difference. Ahh, that makes some sense! 
So it isn't function so much as operational "feel"? |
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i am good with CMMG LPK.. but magpul trigger guard is nicer :) Maybe I've just got small fingers but there is loads of room inside the guard for a couple layers around my digit. And besides, isn't that why the normal trigger guard has that spring-loaded pin at the front, so it can be quickly opened out of the way? What about trigger pull? My AR weighs about eight pounds (HBAR, soon to be changed) and the PSA trigger will just hold the weight. Does the DD kit have a lighter pull? |
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I went PSA LPK/MOE Build Kit on my 1st build (parts due this week)..
price with MOE Stock and Tube was hard pressed to be beat.. even at $139 last week.. now if the actual PSA trigger sucks WORSE THAN my DPMS trigger then.. 
I'll buy the simple but cool RRA 2-stage for $90 from Legaltransfers and be done with it.. 
I heard good things with the Stag LPKs.. |
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My favorite is ArmaLite. ArmaLite LPK's are among the best available. I prefer the ArmaLite fully serrated bolt release over the more commonly found releases. Springs, pins and detents meet milspec size and finish requirements. Add the ArmaLite two stage to the LPK for a total price of $125, it's the best bargain I have seen. The ArmaLite two stage is far superior to the RRA, the disco is much wider, RRA's weak point, and has a additional three position spring for adjusting trigger pull in .5 lb increments. |
| I've built lowers with LPKs from RRA, DD, Stag/CMT, PSA, M&A parts, Spikes, unbranded, DPMS and probably a couple more. The only ones I know I've never used are Armalite and Colt. I really like RRA, the trigger on my 1 of my DD was absolute crap(rough as hell), but the PSA is my go-to since they use part marked identical to some Colt and Spikes parts yet is only $45, or $60 with an Ergo which I prefer. |
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I have never used a CMMG LPK (nor Armalite), but have used many others. I prefer the DD LPK to PSA, RR, DPMS, or Spikes standard LPK. I do like the Spikes battle trigger (NiB)set a lot, especially when I use Tubbs springs. I also do like the Magpul trigger guard that comes with the DD LPK. The trigger pull on the DD LPKs that I used were pretty slick when first installed (as they were). I just ordered 2 more PSA LPK kits (minus FCG) for a couple builds, so these are not that bad. I do not care for the PSA selector detent, as it feels mushy on the last 2 PSA LPKs that I used, but I can deal with it. I have a couple LWRC FCGs that are really nice for what they are also.
Just like any other choice we make, others see things different. I choose not to use any more DPMS parts, but find the others GTG (just different). The DD LPKs I used were the nicest I have installed so far, may try CMMG or Armalite in the future, if/when I build more. Edit to ad-> You'll find the "S" cast into most FCGs, L.W. Schneider, so many are supplied from the same root source. How they finish or polish, or pins and springs make the most difference. Look at your parts, that "S" is common, from MANY of our prefered sources. |
| what I do is I use partial LPKs because I have plenty of triggers,disconectors and I use M16 hammers that have had the hook grinded off same with disconectors when I can find them id rather have surplus contract parts or old A1 Colt parts modified for semi auto that way I know its a good part.Everything else in a kit im sure comes from sources everyone uses for detents,springs.$80 for an LPK it better come with a MOE grip and trigger guard for that money. |
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I've used DPMS, M&A Parts, and PSA. The M&A and PSA were good to go. The DPMS was a poor choice. The "roll" (split) pins were very hard to get in and the safety lever had a large pit in it (a casting flaw). The DPMS also had the worse trigger pull. It was very gritty. In the future, I will choose PSA based on the very good MOE deal. I also like a rounded hammer which comes with the PSA kit. I have no complaints about the trigger pulls on the M&A and PSA triggers.
Just my experience at least. |
| can anyone comment about variation in LPKs within a brand? I would think that for the most part, they would be the same but it seems like theres a lot of variation in dpms LPKs. for example, the poster above didnt like his but the trigger in mine is pretty crisp. or is this just a dpms thing? |
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can anyone comment about variation in LPKs within a brand? I would think that for the most part, they would be the same but it seems like theres a lot of variation in dpms LPKs. for example, the poster above didn't like his but the trigger in mine is pretty crisp. or is this just a dpms thing? Could just be a brand snobbery thing. Some people equate quality with high prices. I've only used RRA, DPMS and Spike's LPK's and the Spikes was by far the "best" one. It seems like the parts were buffed out before packing. The DPMS LPK was my first assembly and the trigger reminded me of the NIW A2's my unit got one year. |
| I have no idea why people get caught up on the feel of a stock single-stage trigger. They're not built with being "crisp" in mind. That's why you upgrade to a two-stage. As the guy above stated, his unit was issued brand new A2's with triggers that felt horrible. Why? Because they're battle rifles, not accurized sniper rifles or anything like that. |
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can anyone comment about variation in LPKs within a brand? I would think that for the most part, they would be the same but it seems like theres a lot of variation in dpms LPKs. for example, the poster above didn't like his but the trigger in mine is pretty crisp. or is this just a dpms thing? Could just be a brand snobbery thing. Some people equate quality with high prices. I've only used RRA, DPMS and Spike's LPK's and the Spikes was by far the "best" one. It seems like the parts were buffed out before packing. The DPMS LPK was my first assembly and the trigger reminded me of the NIW A2's my unit got one year. There are some differences between brands like roll pins instead of split pins, round hammer instead of notched hammer, etc... It seems some brands will take the extra effort for the small details like that and some brands won't. M&A Parts definitely made the extra effort for their LPK's, but since I liked rounded hammers and the PSA MOE LPK is such a good deal, I'm sticking with PSA. The reality is that even with my DPMS LPK, its still reliable and no parts have broken. The hammer was initially gritty but now that the trigger has about 2,500 cycles on it, its smoothed out incredibly. If I was the O.P., I'd pick the cheaper option. |
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