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AR Lower Parts Groups - whats the difference??!?!? (Read 4722 times)

TastesLikeMetal

AR Lower Parts Groups - whats the difference??!?!?
« on: March 12, 2016, 09:20:48 PM »
Between your run of the mill DPMS, CMMG, Rock River, Spikes etc. are there things I need to look out for, are most/all sourced from the same place?  The only thing I know for sure is it's for a Spikes Lower,,,
« Last Edit: March 12, 2016, 09:36:24 PM by TastesLikeMetal »
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stangzilla

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #1 on: March 13, 2016, 10:54:59 AM »
Comparing the milspec parts, springs, pins,  detents, controls like safety , mag release, bolt catch, buffer tube, those parts are pretty much the same.
Trigger, trigger guard, pistol grip, butt stock, those parts may differ
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TastesLikeMetal

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #2 on: March 13, 2016, 11:36:24 AM »
Thanks, probably going to order basic parts kits without Triggers and add everything else ala carte.
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djsmiles808

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #3 on: March 13, 2016, 02:07:23 PM »
The bcm lpk is a great deal imo
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GZire

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #4 on: March 14, 2016, 09:12:31 AM »
Single biggest thing to look out for is milspec versus commercial.  Pin sizes are different as well as buffer tube.
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T4R-noob

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #5 on: March 18, 2016, 06:36:33 AM »
interested as well, Ive looked the bcm kit but those are all sold out, Ive been looking at ALG, any info on this kit?
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Surf

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #6 on: March 18, 2016, 07:45:13 AM »
There can be differences in materials and spec tolerances can vary.  There are common parts manufacturers who supply parts, but not all are equal.  Some do their own parts 100%. 

Generally purchasing parts from a quality company will be gtg.  Understanding who those companies are is another thing.  Anything ALG is gtg as they are just an offshoot of Geissele. 
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drck1000

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #7 on: March 18, 2016, 09:30:08 AM »
I've been wanting to try the ALG stuff for a while.  Particularly the QMS and other "lower" end (read inexpensive  ;D ) trigger groups. 

Since the last shortage of everything AR related, I still have a few LPKs.  One DD and a couple that were reported "mil-spec" that were assembled in a group buy.  I've built one lower with one of those and it seemed just fine.  I bought those because there were a good price at a time when you just couldn't find LPKs.  That said, I'd personally stick with LPKs from the usual suspects, like DD, BCM, LMT, ALG, etc. 
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TastesLikeMetal

Re: AR Lower Parts Groups - whats the difference??!?!?
« Reply #8 on: March 19, 2016, 09:43:27 AM »
Quote from: T4R-noob on March 18, 2016, 06:36:33 AM
interested as well, Ive looked the bcm kit but those are all sold out, Ive been looking at ALG, any info on this kit?

If I had known ALG made one I would have gone with it, thanks for the info.
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