DPMS LPK, a worthy value?

[triplestack3]

I wouldn't touch PSA's lower parts kits with a 10' pole. We had a calgunner post recently about cracking his polymer PSA hammer after the first ever dryfire/function check with a new upper. Cracked in half once it hit the firing pin/receiver.

PSA's LPK kits do not have plastic hammers


unless tere hanges




but to answer OP's ?, I didn't care much for the DPMS kit. I prefer Rock River LPKs as their roll pins are less of a pain to deal with.

[TheExiled]

I have to agree with the larger roll pins, but other than that, Ive had thousand of rounds thru a rifle with a DPMS kit and no issues. The pin installation is solved with some needle-nosed pliers. The stock trigger was nicer from the DPMS kit than several PSA LPK's I have

[tacticalcity]

I used to use the DPMS as my go to LPK but switched to CMMG and never looked back. The DPMS trigger is super crunchy and gritty.

[jdben92883]

That's easy to do. I know if people that have cracked the magwell of metal lowers by letting the hammer slam down. I like to fidget while I'm waiting for things, so if I have a complete lower in my hand, there's going to be a good chance I'm cocking and pulling, but I'm going to have the hammer strike my finger, not the lower.

PSA units work fine, on sale $49.99 with moe grip. They do not have a plastic hammer, it's steel. I think the previous post refers to the hammer breaking the polymer lower.

[VictorFranko]

I used to use the DPMS as my go to LPK but switched to CMMG and never looked back. The DPMS trigger is super crunchy and gritty.

Damn, I find myself agreeing with TC again.
I have installed both DPMS and CMMG and found CMMG to be of higher quality overall.

[ratled]

Thanks all for the reply's. I went ahead and went with the DPMS.

ratled

[Thorax]

+1 ^

CMMG is the highest quality castings I have found for a mil-spec lpk.

[Gutpile66]

This is funny. My brother bought a CMMG LPK recently. It was the worst mil-spec trigger I've ever worked on, and I've worked on lots of 'em. Took me twice as long to get it to where I like 'em. Also, the LPK had two front take-down pins, and no rear take-down pin . . . terrible. Nice little color-coded baggies though.

He also bought a two-stage CMMG trigger. We installed it in three different lowers before we decided it was drastically worse than any 2-stage we've ever tried, by a large margin. Probably broke at around 8 - 10 lbs. And the reset was very stiff.

I've used PSA's LPK and haven't had any trouble. But now Mega is telling customers not to use them on their lowers because they're out of "spec".

I like the DPMS kits, and their triggers are great and require very little work to make right. Slightly over sized pins are better than slightly under sized, if you ask me.

JP LPK's are very nice, and affordable. You can get them for around $40.00 sans trigger.

[socom2shooter]

Dpms triggers arnt bad for single stage mass production. Mines alright. The important thing is 5000 rounds and no issues.

[VictorFranko]

This is funny. My brother bought a CMMG LPK recently. It was the worst mil-spec trigger I've ever worked on, and I've worked on lots of 'em. Took me twice as long to get it to where I like 'em. Also, the LPK had two front take-down pins, and no rear take-down pin . . . terrible. Nice little color-coded baggies though.

I installed the CCMG LPK with a Timney trigger, CMMG trigger is still in the blue bag. Or was it the yellow bag?

[zfields]

Just installed a DPMS kit the other day, and I agree, the pins are a bit tight.

Trigger aint bad though, but I'm known to be somewhat heavy handed and don't pick up on the nuances of nice triggers

[Kevin S]

+1 for me for the pins being tight. I installed one a couple of months ago (no fcg), hadda bang the poop outta the trigger guard pin, and my bolt catch still doesn't pivot all that smooth.

Never again DPMS for me...

[gemini1]

When I functioned test the DPMS 308 LPK I installed on my lower, I can feel the trigger moved when hammer is recocked and engaged the disconnector.
The inner slot of the trigger where the tail end of disconnector rest is not deep enough that the disconnector hardly moves. Good thing I have the $10. HF mini Dremel and filed off the slot deep enough for the disconnector to swing up/down more. I have another issue with the bolt catch but I'm not sure yet if this is the part being under spec or if the lower is the issue, will find out once I have the upper completed.
I had that issue on this thred;

http://www.calguns.net/calgunforum/showthread.php?t=833612&page=2