AR-10 Build PSA10 compatibility

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SlappyWhite

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Greetings for my second build I am doing a AR-10 lower with the 5d router jig.

PSA mentions compatibility concerns with the AR-10.



I've ordered these 2 to complete the AR-10 my question is will the 5d router jig give me proper fit? If not I guess I can just order a PSA lower.

Thanks in advance.
 
Biggest concern over an AR-10 Build is there are two BASIC AR-10s out there (to my knowledge, there may now be more). DPMS pattern is the most common, but Armalite-compatible parts are out there too. Generally, when parts are listed as "DPMS" or "LR-308", they are the same. 5D Tactical jigs are DPMS-based, as are their Lowers. Honestly, I have not tried any of Palmetto's AR products, and I am not seeing ANYTHING on their site saying their AR-10 platforms are DPMS-based (I may have missed it), but the references to "Gen 1" and "Gen 2" imply DPMS lineage. If you are able to 'gun-smith' an 80% ANYTHING, you can probably resolve any minor differences between various DPMS-pattern AR-10/LR-308 receivers...
Hopefully someone with direct experience on Palmetto's AR-10 receivers will chime-in too.

*Edit: I read through some of the reviews and questions on the LPK, and it definitely looks like a concern regarding the Bolt Catch Lever -most of the 80% lowers are now using a screw-in 'pin' instead of a driven-in roll-pin to hold this in place. I don't see that threaded 'pin' in PSA's kit, and someone specifically mentions this too. That CAN be purchased separately, but... What is the purpose of buying an LPK if you have to supplement it with 'correct' parts? Still, it should get you MOSTLY there...
 
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Coincidentally, I am also knee deep in this analysis and I don't know a whole lot about AR-10 builds. But, I read the same thing on a vendor's website today when reviewng AR10/308 lowers. They were quite specific to identify that their lowers were not compatible with PSA uppers. I didn't investigate why, and will assume @GSW10 's has sniffed it out.

I found a video this past week that does a good job describing the differences between 308 uppers. I will look it up again and try and post it here.
 
Yea, get an Aero bolt catch leaver. My LPK from Delta Team Tactical, bolt catch would not catch the bolt. The Aero works great.

I believe PSA10 is propriety to their lower. Check out Delta TT. Their LR308 upper works with most LR308 lowers. You can get a full build minus lower for around 5 bills. I did have a issue with the upper. Gas tube pin was missing and the tube was to short. I replaced the pin and used a Wilson combat 15 1/2" gas tube. Rifle length system.
 
Interesting, so I am right in thinking the DTT upper will work with EPT trigger group from PSA or is there something else I am missing here?
 
SlappyWhite said:
Interesting, so I am right in thinking the DTT upper will work with EPT trigger group from PSA or is there something else I am missing here?
Click to expand...
AR trigger/Fire Control Group (FCG) are interchangeable, even between AR-10/LR-308 platforms and AR-15. Something really 'exotic' like a Binary Trigger made for an AR-15 may not function properly in an AR-10, but typically they interchange, so even in this case with a PSA component, it SHOULD work in any 308-caliber AR, if that makes sense.

Edit (again): šŸ˜‚Okay, HERE is a pretty good reference for you, informative article with parts interchange info you may find helpful.
www.wingtactical.com

AR-10 vs. AR-15: Which of Their Parts Are Interchangeable?

You will spot many similarities when you compare an AR-10 vs. an AR-15. Check out several parts from these rifles that are interchangeable for gun owners.
www.wingtactical.com www.wingtactical.com
AND just in case, a list from Wing Tactical... But read through their article too because some issues are explained in better detail.
AR-10 Parts Compatability 1a.jpg
 
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SlappyWhite said:
Interesting, so I am right in thinking the DTT upper will work with EPT trigger group from PSA or is there something else I am missing here?
Click to expand...
Yes, it should work. The trigger groups are compatible with all ar platforms. Personally, I prefer the drop in triggers. Easier to install.

I believe the difference in the PSA 10 is its cut different where the buffer tube connects. The AR10 lower will have an angled area going to where buffer screws in. The DPMS and LR308 will have a vertical area.

lr308.jpg


This is my 308. 5D lower with DTT upper. Arken 6x24 optic ( if you want a nice optic for a very reasonable price check out Arken)
 
I am so glad this thread popped up. I was already researching 308s and was going to pose my own questions, but @SlappyWhite saved me the trouble. Keep it coming folks! (y) Show us your 308s and experiences with them. Thank you!
 

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