Robocop1051 Posted September 21, 2012 Report Share Posted September 21, 2012 I understand that the AR-10 uses modified magazine and bolt catches, made specifically to enhance the operation with the larger .308 parts. I saw from one of Imschur's previous post that there are some minor differences in the AR-10A and the AR-10B.I currently have an AR-15 mag catch in my SI-D lower (LR-308 compatible). I'm wondering if the AR-10A would be a compatible upgrade for my rifle? Especially since the AR-10A is Magpul LR20 friendly, and that is all I own! Quote Link to comment Share on other sites More sharing options...
ArmaLite Posted September 21, 2012 Report Share Posted September 21, 2012 Sorry. We have not tested to find out, so I don't know. Quote Link to comment Share on other sites More sharing options...
washguy Posted September 21, 2012 Report Share Posted September 21, 2012 Robo I betcha it would work....try it :) Wash Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted September 22, 2012 Author Report Share Posted September 22, 2012 Robo I betcha it would work....try it :) WashI hate you right now.... You're as bad as those "other" guys <lmao>(Just trying to find one for sale that isn't going to RAPE me in shipping) Quote Link to comment Share on other sites More sharing options...
washguy Posted September 22, 2012 Report Share Posted September 22, 2012 I hate you right now.... You're as bad as those "other" guys <lmao>(Just trying to find one for sale that isn't going to RAPE me in shipping)Dadgum Robo there are a bunch of online places that have free shipping!on a 150 bucks or more <lmao> <laughs> Wash Quote Link to comment Share on other sites More sharing options...
tolbndfishin Posted September 22, 2012 Report Share Posted September 22, 2012 :o Ya'll are ALL a bunch of enablers. >:(I LOVE this place <thumbsup> <lmao> <laughs> <laughs>Russ Quote Link to comment Share on other sites More sharing options...
unforgiven Posted September 22, 2012 Report Share Posted September 22, 2012 <lmao> No one is spared. <laughs> Quote Link to comment Share on other sites More sharing options...
survivalshop Posted September 22, 2012 Report Share Posted September 22, 2012 I have the std AR 10 mag catch in my CMMG lower & it holds the mag tighter in the receiver . I tried it to see if that would help with using Pmags in this lower , but they still won't function properly , as said all the steel mags work fine .Not sure how the new type ( A ) mag catch would work any different , just the (I guess " B " ) works fine in the CMMG lower.There is a thread about the differences in the AR 15 or DPMS mag catches & AR 10's , check the CMMG section its in there some where , just don't know about the newer " A " type or its Bolt stop .The longer threaded stem is the AR 10 mag stop , it also has more beef on the catch area. Quote Link to comment Share on other sites More sharing options...
mrraley Posted September 24, 2012 Report Share Posted September 24, 2012 ArmaLite actually has a tech note that covers this and has pictures too...As you can see, the M15 and AR-10A Bolt Stops are similar in shape. However, the AR-10A Bolt Stops are clearly marked AR-10A. And, if you look closely at the upper leftportion of those two parts, you’ll see significant visual differences between the two.The AR-10B Bolt Stop is very different in shape than the other two. Note the relativelylarge flat angled surface near the top of the AR-10B Bolt Stop.[img width=810 height=439]http://i215.photobucket.com/albums/cc90/mrraley/firearms%20stuff/Magrelease_zps4a12b043.jpgDifferences among the three Magazine Catches can be seen in the shape of the boss onthe right end of each catch. (This is the boss that engages the cutout in the magazinebody in order to retain the magazine in the lower receiver.)The M15 and AR-10B Magazine Catches are similar in design. However, the magazinecatch boss on the M15 Magazine Catch has a chamfer on its lower side (shown in redabove), whereas the AR-10B boss lacks that chamfer. The AR-10A Magazine Catch is easy to differentiate from the other two. Note that the boss on the right end of the AR-10A Magazine Catch is rounded on its outer end.ArmaLite Tech note 101 Quote Link to comment Share on other sites More sharing options...
survivalshop Posted September 25, 2012 Report Share Posted September 25, 2012 Interesting .Wonder about the difference in the AR 10A ( & why )& wounder if it would work better on a LR 308 mag. ? Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted September 25, 2012 Author Report Share Posted September 25, 2012 I'm making a "special" phone call tomorrow. I'll make sure to let you all know. Quote Link to comment Share on other sites More sharing options...
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