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Which LPK do you use for AR builds?

Discussion in 'GSSF' started by emt1581, Jan 23, 2010.

  1. emt1581

    emt1581 Curious Member

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    It's been a few years since I built an AR. I was initially going to go with a DPMS LPK but a few have said they have hit or miss quality. I've read the same about RRA LPK's. There are so many brands out there right now...I have no clue which to go with.

    Which do you use? What are some brands KNOWN for quality?

    Thanks!

    -Emt1581
     
  2. RMTactical

    RMTactical Battle Born CLM

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    RRA and Stag are good choices in my experience and what I usually use. I've only used one DPMS LPK and it worked fine.
     

  3. Chuck TX

    Chuck TX CLM

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  4. emt1581

    emt1581 Curious Member

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    Well it is going to be on a Stag lower...maybe a Stag LPK would be good to try. What about the Stag is good quality compared to others though?

    Thanks!

    -Emt1581
     
  5. KalashniKEV

    KalashniKEV

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    One consideration is that the Stag and RRA both use a notched hammer, so you lose that versatility if you want to do caliber conversions further down the road...

    Or use an RRA w/ a DPMS hammer as this gent did:

    http://www.ar15.com/forums/topic.html?b=3&f=15&t=448846

    But only if you're really down on DPMS. I think they're GTG.
     
  6. emt1581

    emt1581 Curious Member

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    I don't understand what notches on the hammer have to do with caliber conversions. :dunno:

    I've gone all the way up to a .50BMG with the same finished lower.

    Thanks!

    -Emt1581
     
  7. thisaway

    thisaway

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    I put a Stag LPK into a stripped DPMS lower. It went in easily, and functions just fine.
     
  8. emt1581

    emt1581 Curious Member

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    Where is a good/cheap place to order a Stag LPK from?

    Thanks!

    -Emt1581
     
  9. Chuck TX

    Chuck TX CLM

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    I prefer Stag (unless you want to fork out the money for the Colt LPK) over the other I've used because all the parts have been to spec and the trigger is much smoother on average than the others IMO.

    None of the Stag LPKs I've used, and I've used more than a few, had notched hammers. The Daniel Defense LPK's in my experience have a notched hammer and the trigger needs work if you don't want it to feel like two bricks rubbing together. I would not use a DPMS ever again, unless there were no other option. Trigger pin broke before 1K (ain't the only one it's happened to) and the roll pins are a touch larger than they need to be.
     
  10. emt1581

    emt1581 Curious Member

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    But again, what do trigger notches have to do with anything.? I know caliber conversions were brought up before.

    Also where is the best place to get Stag LPK's from?

    Thanks!

    -Emt1581
     
  11. Chuck TX

    Chuck TX CLM

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    The notched ones can catch on the BCG. If you're using a full-auto BCG it shouldn't be a problem, but if you aren't then it can be. The notched hammers don't work for crap with .22LR uppers and conversions, and can cause problems with AR 308s, at least for me they have.

    I've gotten them from Talon Arms and Rainier Arms. The pic that Rainier has for the Stag LPK shows a notched hammer, but the Stag kit is not notched in my experience. It's the same pic they show for the RRA LPK, so I reckon they're just lazy and it's a actually a pic of the RRA LPK. Not sure why they did that.
     
  12. emt1581

    emt1581 Curious Member

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    Ok, so stay away from notch hammers. Got it!

    Seems like $80 OTD is the cheapest I'll find. Maybe I'll sniff around the auctions and see if I can find any Stags cheaper.

    Thanks for the info!:)

    -Emt1581
     
  13. emt1581

    emt1581 Curious Member

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    Found a bunch for $70 shipped. I figure I'll pick one up and if the fit/function is nice I'll order 5 more.

    Thanks!

    -Emt1581
     
  14. emt1581

    emt1581 Curious Member

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    BTW, that notch....are yall talking about the notches on the face of the hammer or the ones around the back by the curve?

    If both are to be avoided, I'm not sure Stag is going to work since theirs have notches on the face of the hammer.

    Thanks!

    -Emt1581
     
  15. RMTactical

    RMTactical Battle Born CLM

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    They work.
     
  16. remat

    remat

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    Big +1.

    I get mine from rbprecision.com. For no extra charge, they partially assemble them for you and give you an extra selector spring and detent in case you, if you are like me assemble it while watching tv and lose one.

    I have also gotten kits from RainierArms and DDSRanch. Both are great to deal with. If cost is important I often see the Del-Ton kits on sale for even less than the DPMS. I have never used one though.
     
  17. LRB2GZ

    LRB2GZ

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    My DPMS lpk was missing parts and I had to contact them and wait several weeks on replacements. I don't know how that gets past quality control but it was during the after election scare. The trigger guard roll pin was a little tight also.

    Just passed on that one experience if I ever do another AR build I probably won't use DPMS again.
     
  18. emt1581

    emt1581 Curious Member

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    I appreciate all the replies but I really need to know more about this mysterious notch. I was told that the notches on the faces of the Stag hammers would not function well in a 9mm upper. Is this true and if so...why?

    Also, which brand does not have any notches that's good quality?

    Thanks!

    -Emt1581
     
  19. madecov

    madecov book em' Danno

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    Another vote for CMT/STAG, very good kit.

    On my match rifle I went with a RRA two stage, more money but nicer trigger pull
     
  20. emt1581

    emt1581 Curious Member

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    But do the notches on the Stag kit's hammer really screw things up when you switch to other calibers such as 9mm? If so, what brand best to go with that has a flat faced hammer/no notch?

    Thanks!

    -Emt1581