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AR15.COM
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4/3/2016 5:58:11 PM EDT
I see you can get these for around $1,100 -$1,600. Are these any good?
4/9/2016 9:33:18 PM EDT
[#1]
I built on a matrix receiver set and it's sexy. Has some annoying proprietary parts, but if you are looking at a complete rifle that won't matter. Matrix builds the receivers for the ruger 762
4/10/2016 2:06:56 AM EDT
[#2]
Quote History
Quoted:
I built on a matrix receiver set and it's sexy. Has some annoying proprietary parts, but if you are looking at a complete rifle that won't matter. Matrix builds the receivers for the ruger 762
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What are the proprietary parts? I thought it used all armalite stuff, including the barrel nut?
4/10/2016 9:53:02 PM EDT
[#3]
They have DPMS and AR10 versions. The receiver shape and rail height is AR10, but they have versions using both barrel nuts. Mine uses AR10 but I think the newer ones are threaded for DPMS. The pivot and takedown pins are different than both patterns. The takedown pin retaining spring/detent comes in through the rear like a normal AR, not like a standard 308AR through the grip area. Because of that, the spring needs to be longer than standard LPKs. Regular DPMS bolt catch doesn't have enough meat to lock back on an empty mag. I'd recommend anyone building on a matrix set buys the matrix LPK, as it has all the right stuff. There also seems to be an issue with the FA binding up on certain carriers. I had to run a plug with my DPMS carrier. I know at least one guy who didn't have any issues and I think it was an aero BCG. I'm running the AR10 barrel nut/handguard with DPMS pattern barrel, BCG, and buffer parts. Got a great deal from Chris at centralfloridafirearms.com and he knows a lot about the brand.
4/10/2016 11:02:50 PM EDT
[#4]
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Quoted:
Has some annoying proprietary parts,
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Seems that is the case more often than not when working with the LR-308/AR10 pattern uppers and lowers.
4/13/2016 11:20:52 PM EDT
[#5]




I just picked mine up today, got from Central Florida Firearms via Gunbroker. Looks really good fit and finish wise. A full PMag will lock on a closed bolt.The A1 style f/a has a lose,sloppy fit (I'll probably replace it with an A2 type) and the dust cover is about 1/8" too short at each end.Not a huge deal.Can't wait to shoot it.
4/14/2016 12:35:42 AM EDT
[#6]
Do you mean the dust cover rod, or the actually cover? If the cover, maybe they put an AR15 by mistake. If you're seeing 1/8" gap on both sides, that's the problem.

But if you're referring to the rod itself, Armalite makes a longer rod for free float handguards.
4/14/2016 12:41:50 AM EDT
[#7]
The dust cover itself, it does look like they put an AR-15 one on instead. I guess I can't replace it unless I took off the handguard?
4/14/2016 2:02:24 AM EDT
[#8]
You might be able to get away with it. I think Strike industries makes one you don't need to remove the handguard. Can cut yours off and replace it with that one
4/15/2016 2:22:24 PM EDT
[#9]
I have the strike cover. Needed some light sanding around the hinge, but fits nice. Actually costs less than a whole metal setup.
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