Anderson3754 Posted December 22, 2019 Report Share Posted December 22, 2019 I'm on my third build, and was part and party to 2 other builds. The problem I/we have run into is with the mag catches.Their too short in width to properly lock the mag in place securely. This requires me to tig weld the locking tab, and re-profile it for proper mag lockup and release. Is there a source for mag catches that fit and work properly, or oversize for me to hand fit. The receivers in question are Aero Precision 308 Lowers. Regards Anderson3754 Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted December 22, 2019 Report Share Posted December 22, 2019 I have to update this thread... Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted December 22, 2019 Report Share Posted December 22, 2019 Here's a thread about a situation similar to yours... Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 22, 2019 Author Report Share Posted December 22, 2019 Thankyou... that is a valuable piece of info. The 10A assemble is what I'll be purchasing this week. Regards Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 (edited) 4 hours ago, Anderson3754 said: Thankyou... that is a valuable piece of info. The 10A assemble is what I'll be purchasing this week. Regards Well it looks like the only way to obtain this mag catch is to purchase the AR 10A lower parts kit, less the ignition parts for $56.00. The Mag Catch individually are out of stock and it is not clear if pt# EA6080 is for the 10A or 10B or might it be the same for either 10A or 10B ??? Edited December 23, 2019 by Anderson3754 Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 23, 2019 Report Share Posted December 23, 2019 10 hours ago, Anderson3754 said: The receivers in question are Aero Precision 308 Lowers. Regards Anderson3754 I've never, ever had an issue with the AP mag catch, in AP M5 receivers. Ever. I'm up to about 5 of them now. Never an issue. Specific pictures of the issue you're having would be beneficial to this discussion. Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 Pictures will be tough for me, but let me see if I can get my daughter to help get this accomplished. You made mention to the AP mag catch ( Aero Precision) mine are of unknown origin probably from AR15's . The engagement of the pad into the mag slot is not wide enough to securely lockup the mag properly. The mags I have are ASC, D@H,and Pmags. The slightest touch of the mag release button will drop the mag onto the ground and if you grab the mag twist left and right as your pulling downward you can pull the mag right out. My solution is Tig welding the pad to a wider profile, file to the proper width and then i have positive lock up of the mag in the receiver. Robocop1051 The moose knuckle Promotions Director 9,079 posts LocationNor-Cal Report post Posted October 3, 2012 First and foremost, I want to thank MrRaley for assisting me in this project. No one here is a stranger to the quality of the Armalite rifles. I am forever in search of making sure I have taken advantage of all of the modern advances in the technology for the AR308. Armalite recently released the newer AR10A which is now able to use the Magpul LR20 PMAG. This huge undertaking is combined with the fact that Armalite is notorious for making .308 specific parts. Up to now my rifle has had the standard AR-15 magazine catch. Since Armalite was so gracious to release this new feature on the AR10A, I was extremely interested to see if this new part would; 1. work on my rifle, and 2. be a satisfactory upgrade to the commonly used part I already had. After a bit of aid from MrRaley, and a short wait on the US Postal Service (I was also delayed by the opening weekend of buck season), I finally had my package in my mailbox. I instantly recognized the AR10A magazine catch from all the pictures I had seen online. As quickly as I opened my mail, I had my AR15 magazine catch out to compare parts. The differences were immediately present to me. First... The AR10A had a slightly longer post than the standard AR15. This equates to a longer range of motion. Next... I saw the "boss" (as is was described to me by MrRaley) was significantly larger on the AR10A part in comparison to the standard AR15 part. Last... The spring was exponentially stronger and longer on the AR10A part versus the AR15 part. Assembly was just as simple as any other magazine catch. The combination of the three examples above made for a very strong and deep contact on the Magpul LR20 PMAG. Unfortunately the pictures will never be able to show you how firm and solid this new mag catch works. I can honestly say I am pleased with the new part. Its functions and installs perfectly. The solid and distinct sound of the magazine seating into the magwell was reassuring to say the least. There is no worry that weight of the magazine, combined with the power of the bolt slamming over the top, is going to unseat my magazine. I fully stand behind this as an upgrade to the DPMS/KAC versions of the 308AR rifles. Armalite has proven to me once again why they have been able to weather the years of clones and copies, always to remain the undisputed example of how it all started! Thank you to Imschur and MrRaley for making this possible for me. Report post Posted April 20, 2017 Sounds like your Lower Receiver is out of Spec . Fixing it is still going to give you other issues , you can extend the Threads & trim ( if needed ) the Catch Threaded shaft , so the Release Button can be threaded in more on the shaft, to keep the Mag Catch with in its operational parameters , but this will also make it more difficult to insert a Mag. with out depressing the Mag release Button , to do so. You should not have to depress the Mag release Button in farther then flush with the receiver . You may be able to make the ramp on the Mag Catch steeper , so as to allow the magazine to slip in a little easier . If you look at the Mag Catch , it will have a lead into the Pad itself to help with inserting the mag. The AR 10 ( Armalite ) Mag Catch has a longer Shaft & a larger Pad area , compared to the DPMS LR308, I believe its the "B " model Catch . Not sure it will help your situation . It sounds like Your Receiver width or the Mag Catch well is to short . How about some Photo's .Take some measurements & I will take some off one of my DPMS Lowers & Mag Catches . I also have a AR 10 Mag Catch as you can see Quote Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 (edited) The first and second picture explains the problem very well. It's the pad not extending deep enough into the mag lock cutout Regards Edited December 23, 2019 by Anderson3754 Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted December 23, 2019 Report Share Posted December 23, 2019 I wouldn’t be surprised if AP copied the AR10A design.... or it may have even been AP’s design to begin with. if I remember correctly, AP used to make oem parts for armalite Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted December 23, 2019 Report Share Posted December 23, 2019 Try calling Armalite for the part. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 23, 2019 Report Share Posted December 23, 2019 Thread it in farther... You don't have it threaded in enough, and that's causing your problem... Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 42 minutes ago, Robocop1051 said: Try calling Armalite for the part. Yes.. that is my plan for tomorrow. I made a check of the popular LR 308 parts suppliers and their either out of LR mag catches or they list the part as AR15/Ar10 which would be what I have. The LR frames sure have there build problems, again thanks for your help, I appreciate it. Regards Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 23, 2019 Report Share Posted December 23, 2019 7 minutes ago, Anderson3754 said: Yes.. that is my plan for tomorrow. I made a check of the popular LR 308 parts suppliers and their either out of LR mag catches or they list the part as AR15/Ar10 which would be what I have. The LR frames sure have there build problems, again thanks for your help, I appreciate it. Regards Try this instead of spending money on more parts... Look below vvv... 10 minutes ago, 98Z5V said: Thread it in farther... You don't have it threaded in enough, and that's causing your problem... Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 3 minutes ago, 98Z5V said: Thread it in farther... You don't have it threaded in enough, and that's causing your problem... No, I have it threaded in correctly, along with a extended style button. The problem is in the width of the mag catch pad, the pad does not protrude deep enough into the magwell, to lock into the mag cutout deep enough. Now another way the problem can be fixed is to deepen the receiver slot so the mag catch can sit deeper into it's slot. This would give additional depth for the pad to lock into the mag. But..you would first have to measure the wall thickness to see if you have enough material to do that, then I would have to go over to my buddys house beg off on him to use his mill. The problem is in the pad, even if you use the extended button to gain more thread purchase, once you release the button the mag catch bottoms out in it's receiver slot. Regards Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted December 23, 2019 Report Share Posted December 23, 2019 1 hour ago, 98Z5V said: Thread it in farther... You don't have it threaded in enough, and that's causing your problem... My rifle was similar. I had the dang thing bottomed out, and I could still drop the mag by barely touching the release. The Armalite piece made just enough difference for me. The longer/stronger spring helped too. Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 23, 2019 Author Report Share Posted December 23, 2019 (edited) 6 hours ago, Robocop1051 said: My rifle was similar. I had the dang thing bottomed out, and I could still drop the mag by barely touching the release. The Armalite piece made just enough difference for me. The longer/stronger spring helped too. Yes... I kinda have done the same, using a stronger spring, extended mag button, but for me, right now welding up that tab and then fitting it is the most correct way to resolve this problem. I looked for several hours online, this specific part is not readily available. I will call Armalite today and see if I can obtain the 10A mag catch as an individual part. These LR308 rifles are a breed all onto themselves. This problem would almost go away if one of the parts manufactures would make this part and put it out on the market. Some are offering the longer threaded shaft, some offer the extended button, and the stronger spring is easy to change out, we just need a longer pad for positive lockup. I'll call Armalite today, but It is always a daunting task with them. Regards and a Merry Christmas Edited December 23, 2019 by Anderson3754 Quote Link to comment Share on other sites More sharing options...
Ravenworks Posted December 23, 2019 Report Share Posted December 23, 2019 7 hours ago, Anderson3754 said: Yes... I kinda have done the same, using a stronger spring, extended mag button, but for me, right now welding up that tab and then fitting it is the most correct way to resolve this problem. I looked for several hours online, this specific part is not readily available. I will call Armalite today and see if I can obtain the 10A mag catch as an individual part. These LR308 rifles are a breed all onto themselves. This problem would almost go away if one of the parts manufactures would make this part and put it out on the market. Some are offering the longer threaded shaft, some offer the extended button, and the stronger spring is easy to change out, we just need a longer pad for positive lockup. I'll call Armalite today, but It is always a daunting task with them. Regards and a Merry Christmas Don't blame Areo perssision or a manufacturer. You can buy the piece from Aero and you can get their parts at Primary arms. Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 24, 2019 Author Report Share Posted December 24, 2019 14 hours ago, Ravenworks said: Don't blame Areo perssision or a manufacturer. You can buy the piece from Aero and you can get their parts at Primary arms. Oh no, I like Areo Precision own 2 ,and have shot 2 others. I'll be buying another Areo Precision upper/lower set in the next 2 weeks or so. So the Areo Precision mag catch's also works fine?? I have bought stuff from Primary Arms I'll look today. I did get through to Armalite after a few attempts, kind of a funny call. I ordered 2 -10A Mag Catches and 1- rifle length Gas Tube. The sales person did not know the price of the parts or what the shipping charges would be, but they would ship out on Thurs 12-26-19. I said thats Okay, and gave him my credit card info. My reluctance to deal with Armalite goes back to the winter of 95-96 over the purchase of 4 Ar-10B's that became nothing but problems. Regards Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 25, 2019 Author Report Share Posted December 25, 2019 I'm back.... I did get an E-mail from Armalite, the amount total with shipping was $48.22, and a Fed Ex tracking number. I ordered 2 10A mag catches, less the spring and button along with a rifle length gas tube. Hopefully there will be a invoice in the package or via E-mail for the break down of parts and shipping. Regards Quote Link to comment Share on other sites More sharing options...
Ravenworks Posted December 26, 2019 Report Share Posted December 26, 2019 I am trying to figure out why you didn't buy the Aero catch? Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 26, 2019 Report Share Posted December 26, 2019 32 minutes ago, Ravenworks said: I am trying to figure out why you didn't buy the Aero catch? Same here - zero functional issues on the 4 or 5 that I have. They work flawlessly. Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 26, 2019 Author Report Share Posted December 26, 2019 (edited) 1 hour ago, Ravenworks said: I am trying to figure out why you didn't buy the Aero catch? I went looking for the Aero version could not find one for sale Edited December 26, 2019 by Anderson3754 Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 26, 2019 Author Report Share Posted December 26, 2019 (edited) Where are you guy's getting them? Edited December 26, 2019 by Anderson3754 Quote Link to comment Share on other sites More sharing options...
Merle Posted December 26, 2019 Report Share Posted December 26, 2019 (edited) KAK makes an extended mag catch for 308 ARs. I have one in my MATEN. https://www.kakindustry.com/special-extended-mag-release-arm Edited December 26, 2019 by Merle Quote Link to comment Share on other sites More sharing options...
Anderson3754 Posted December 26, 2019 Author Report Share Posted December 26, 2019 8 minutes ago, Merle said: KAK makes an extended mag catch for 308 ARs. I have one in my MATEN. https://www.kakindustry.com/special-extended-mag-release-arm Did you purchase the KAK one to solve a similar problem, or was it the one you put in on the build and works correctly ? I was on the KAK site couple days ago looking at the heavy buffer options. Quote Link to comment Share on other sites More sharing options...
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