Help with new build

Nice upper, cant go wrong with DD! Yes you need a milspec lower with a good lpk. The supply of lowers are getting low.. so they are hard to get. Go with the rollmark you like best otherwise PSA lower is good. I highly recommend PSA lpk with ALG combat trigger. Happy hunting & building

 

Q started up a nice thread...
http://www.firearmstalk.com/forums/f20/pictures-lower-receivers-38440/

If you have some time, check out the roll marks and see which ones you like! Then try and track them down.

For the most part most forged lowers are going to be about the same. So long as they are milled within tolerance you aren't gonna see much of a difference.

Some forged lowers are going to have better fit and finish than others. Some others might have little differences such has flared mag-wells , tensioner bolts to remove upper and lower play, and amibidexerous controls.

If you are looking for a budget build, check out PSA and Aeroprecision.

Billet lowers have much cleaner lines, are usually a bit heavier (but not necessarily stronger). Some have the aforementioned extras all are more expensive than most forged counterparts.

Happy hunting! Don't forget to post pron!

 

Excellent choice in an upper. You're correct that you can go with just about any stripped lower receiver, most are milspec and made of 7075-T6 alloy. I would suggest choosing one that you'll be proud of and has enhancements like a flared magazine well. BCM comes to mind and they sell slightly blemished complete lowers for around $300. Some people like billet lowers and if you're military you might like Quentin Defense (no relation!) military editions. I have the US Army edition and have a thread with more info.

As far as the LPK, there are many good choices. Sometimes you can find DD's kit for about $80.

 

Your upper is in a decent reasonable price. As long as its not past $900 or $1k . Try gunbroker.com & aimsurplus.com for Spike's lowers. Sorry i dont know where to look for other brands lowers as i only like Spike's lowers . Or u can even order straight from Spike's IF u dont mind waaaaaittttiiinnnng. They are backlogged with orders.

 

My Daniel Defense upper is on a S&W lower which is a great physical fit and the finish matches almost perfectly. Sometimes you can find their stripped lowers for $100-130 and they come with a great rollmark plus flared magwell. I call that AR my Dan Wesson.

 

I'm a fan of the Magpul CTR (and STR if you want a better cheek weld). Both are fairly light. Lots of great choices though.

 

Well I can't speak for Quentin, but I am sure he will be along shortly.

RGuns has a like/HATE relationship with customers around the internet. We have never done direct business with them, so I can't say one way or the other.

On the surface the product itself (receivers) seem to be of the same or equal caliber/quality as the endless collection of others out there. They use an undisclosed aluminum, AL being common in receivers, but it doesn't appear to be named (7075 for example is listed on the sites' Delaware Machinery offerings). They list a ton of receivers with 8625 Mil-Spec coating, but that doesn't really tell me WHAT they are coating, so I am a bit curious.

They don't have a FAQ on their site, but their e-mail and phone number is clearly listed. With that, I would ask a few questions before placing an order (material, warranty, etc.)

As for around the internet I have read people that have had good customer service (with issues) and people who have had nightmares with real or imagined issues.

The products itself seems to work well with fit and finish (assembly) but seems to struggle with operation WHEN there are issues. Reports I have read range from really helpful to outright discourteous.

Now I subscribe to the theory that if you understand the platform, and you have a decent to good quality parts list, you should be able to make it work.

I don't personally see anything about RGuns that would have me shy away from ordering if the answers on material and warranty were satisfactory and if the price was right.

Good luck.

JD

 

No worries PSG. I don't think that you would encounter a problem with RGuns version to be honest. With the tolerances in modern machining/metal working, it would be more of a fluke to get a receiver component that was SO far out of spec as to cause significant issues.

Worst case the lower has holes that are slightly off or the mating with the upper doesn't quite match up? Neither is fatal, but both can be a pain in the rear to deal with. I suppose you could have an interior that was so far out of spec that the hammer would not have room to go all the way back, but that would be really easy to fix with a Dremel, honestly, and would be a world class EFF UP in production.

Spike's really has a good reputation and that is a company I have personal experience with, so I can't really say anything negative about the choice.

Either way I am betting you would be able to build a decent and reliable AR on any choice lower/upper. The number of troubleshooting hours might vary though and how can you put a price on time at the bench versus time shooting?

JD

 

JD!!! Glad to see you blew the dust off the keyboard and on the forum for a few min. Hope life is treating you well.

 

So sad i wasnt included. Just kidding. Have fun!

 

Palmetto State Armory sells excellent lowers at competitive prices. You can get their PSA crossed cannon roll mork, or for a little more coinage can get a variety of roll marks. Website says out of stock right low.

PSA has lower parts kits on sale right now with free shipping.


Zombie-Defense.com offers a cool roll mark, imo. YMMV

http://search.yahoo.com/r/_ylt=A0oG...P=1339498346/**http://www.zombie-defense.com/

 

Yes, megadittos! Very glad to see you here, JD, and hope things are going well.


PSG, good advice from JD. I also don't have first hand experience with Rguns so would verify they use proper parts. I also would demand a mil spec diameter receiver extension of 7075 T6 alloy and I bet an H buffer would work well with your upper.

 

Good to see you too. I still lurk, but I got an e-mail asking me to stop by and offer a few insights on the AR stuff, so here I am.

No problem PSG. There are lots of good posters and a good collection of knowledge on this site. Just don't get caught up in the "newer, flashier, shiner' and approach this like you would any other reasonable purchase and I am sure you will be happy with it.

I would suggest building your lower though. It's a great experience and it will give you a real understanding of the inner workings, so then when people are talking about this product or that product you will be able to see the merit or BS from up on high.

Yes Quentin things are progressing and thanks for holding down the fort. Hope things are well in your realm as well.

JD