AngelDeVille Posted January 24, 2015 Report Share Posted January 24, 2015 Hey all, I came across this site looking for parts for my newly acquired upper and lower set. I have built a few AR's and I was on gunbroker one night and hit the buy it now on a Matrix Aerospace set. So far I have decided to buy an A2 stock and the LPK direct from Armalite. I still have some confusion on the barrel/BCG options and free float handguard compatibility, but I'm sure they'll be answered soon enough Quote Link to comment Share on other sites More sharing options...
FaRKle! Posted January 24, 2015 Report Share Posted January 24, 2015 (edited) Welcome! I still have some confusion on the barrel/BCG options and free float handguard compatibility, but I'm sure they'll be answered soon enoughThe barrel extension and BCG must be of the same pattern (either both LR-308 or both AR-10 pattern). Technically, you could get away with mixing some parts within the BCG, but it's easier just to keep it all the same pattern.Since you have an AR-10 pattern upper receiver, you'll need an AR-10 pattern rail. The threads on the upper receiver for the barrel nut aren't the same between AR-10 and LR-308 patterns.What would probably give you the most options is getting an LR-308 pattern barrel and BCG but using an AR-10 pattern rail (must, since the AR-10 upper receiver threading).Wilson Combat, Centurion Arms, Troy, Midwest Industries, and others make AR-10 pattern rails. Edited January 24, 2015 by FaRKle! Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted January 24, 2015 Author Report Share Posted January 24, 2015 Thanks so much for the information, that makes a lot of sense, Midwest was on my short list for the handguard anyway, they make a nice guard with just a top rail. I'm not looking to break the bank with this build, I already have glass in mind, now to cruise the site sponsors for an 18-20" barrel and BCG. She will get shot out too 1000 yards quite regularly, and I have a few thousand 180gr projectiles just itchin for the opportunity. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted January 24, 2015 Report Share Posted January 24, 2015 Welcome from AZ! Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 24, 2015 Report Share Posted January 24, 2015 Welcome from Indiana brother,no one looks to break the bank it just happens over and over again. :)) Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted January 24, 2015 Author Report Share Posted January 24, 2015 (edited) Yeah already have most of my parts picked out and I'm over $1,100. So much for cheap! Edited January 24, 2015 by AngelDeVille Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted January 24, 2015 Author Report Share Posted January 24, 2015 The LGS has a DPMS complete rifle for $900 I was almost tempted. Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted January 24, 2015 Report Share Posted January 24, 2015 I believe you'll be better off building. You'll use parts you want and learn more about your rifle that will help you down the road. Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted January 24, 2015 Author Report Share Posted January 24, 2015 (edited) Yeah that was my thought as well, it was more of a flat top mil spec type, and after I change a few parts around I won't have exactly what I want, and it will cost the same. So far from Armalite I'm getting the LPK, A2 stock/buffer/spring set and the charging handle. I have picked out an 18" LR 308 fluted barrel mid length with an LR BCG, LR gas block and tube. The handguard will be the Midwest 15" with the ar-10 nut. I was looking at the Armalite scope mount but it didn't give enough info, it just said it was for up to a 50mm scope, and I don't want to fool with spacers for the 30mm, I have bushnell peppr on another rifle that I like. Im assuming the forward assist and ejection port door are not AR/LR specific. Am I missing anything? Edited January 24, 2015 by AngelDeVille Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted January 24, 2015 Report Share Posted January 24, 2015 Sounds like a great start Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 4, 2015 Author Report Share Posted February 4, 2015 So I have everything on order and I'm out just over 1k for the whole thing. I now have everything but glass, rings, and a Turner sling. But I plan to steal that from my varminter Ar15 for now. I should have all parts in hand in the next 10 days or so, I'll keep you posted! I hope Brownells gets my preordered mags here in time, or I have a fancy semiauto single-shot rifle. Thanks for all your help! Quote Link to comment Share on other sites More sharing options...
BLKSHEEP Posted February 4, 2015 Report Share Posted February 4, 2015 Welcome from Louisiana I haven't tried but I think I remember reading that the 180's may have an OAL too long for the mag <dontknow> Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 5, 2015 Author Report Share Posted February 5, 2015 Welcome from Louisiana I haven't tried but I think I remember reading that the 180's may have an OAL too long for the mag <dontknow> Good call, mags are supposed to fit up to 2.875" and I'm at 2.80". I got room to spare! We'll see how it works out in practice.. Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 7, 2015 Author Report Share Posted February 7, 2015 I picked up the upper and lower today! Looks really good, it was a blem set, and the only thing wrong were some dings on the upper rail where my BUIS will sit anyway. There could be some other things I could pick on, but it's really nothing I care about. I still have to put the LPK and the buttstock on. So I have a question, I was reading that the only difference between the ar15 forward assist and the ar10 was the spring. I assembled the FA using ar15 parts and it looks like it's good. Am I missing something? Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 7, 2015 Author Report Share Posted February 7, 2015 Well I'm almost fully assembled, my LPK came with a bolt cotter pin instead of the safety detent spring, and I'm guessing they aren't interchangeable...... Quote Link to comment Share on other sites More sharing options...
98Z5V Posted February 7, 2015 Report Share Posted February 7, 2015 So I have a question, I was reading that the only difference between the ar15 forward assist and the ar10 was the spring. Not true. Where did you read that? Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 7, 2015 Author Report Share Posted February 7, 2015 Not true. Where did you read that? When I first headed down the AR10 road, I read as much as I could about them, and the differences between the Ar10a, AR10b, SR25, and the LR308 and it was in one of the many articles I read by Internet " experts". It didn't make sense to me, but who am I to question the experts? I gained a lot more knowledge just joining here. Quote Link to comment Share on other sites More sharing options...
Rsquared Posted February 9, 2015 Report Share Posted February 9, 2015 (edited) According to Armalite's website, they use the same part number between the 10 and the 15. Are you sure you have an "A" model? I didn't think that you could get stripped uppers and lowers yet.http://www.armalite.com/catitem2.aspx?Category=93c41860-4ca2-43ee-8ca9-dc09b1a5bf2c Parts 25 and 26 on the exploded diagram. Edited February 9, 2015 by Rsquared Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 9, 2015 Author Report Share Posted February 9, 2015 So I emailed them after hours on friday, and the first thing this morning I had a tracking number and an apology. Awesome CS in my book. My stripped set is a Matrix Aerospace, good stuff. built to A specs. This is the one missing... 25 EB0110 EJECTOR/SAFETY SPRING Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted February 9, 2015 Report Share Posted February 9, 2015 I love Armalite stuff, and they've always been a great company to deal with! Honorary Armalite pusher? If I must! Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 10, 2015 Author Report Share Posted February 10, 2015 so far..... Quote Link to comment Share on other sites More sharing options...
Dane Armory Posted February 25, 2015 Report Share Posted February 25, 2015 Welcome from AZ ! Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted February 27, 2015 Author Report Share Posted February 27, 2015 The rest of my parts aren't here yet.... And the mags I pre-ordered from Brownells aren't shipping yet..... But I did get my vise blocks in.... I hate waiting..... Quote Link to comment Share on other sites More sharing options...
Malig8r Posted March 1, 2015 Report Share Posted March 1, 2015 Welcome from Washington, the wet side of the state. Quote Link to comment Share on other sites More sharing options...
AngelDeVille Posted March 6, 2015 Author Report Share Posted March 6, 2015 I will be offline for the next few minutes..... Quote Link to comment Share on other sites More sharing options...
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