Posted: 3/8/2015 3:13:32 AM EDT
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I just checked both of my Anderson Manufacturing stripped lowers (closed trigger guard) that I have laying around due to another thread.
The issue is the grip screw hole is not threaded all the way through, thus preventing the grip screw from fully seating the grip. Approximately 1/8" of the top portion of the threaded hole is not tapped. These were purchased in November/2014 from AIM. There is another thread going about this exact issue (Anderson lower not threaded all the way). Is this a common problem with them? Can you please advise as to resolving this issue? I have also emailed sales at Aim surplus, but wanted to share this issue here, too, in case others may have not checked their lowers yet. Thank you. ETA: ongoing thread about this issue: http://www.ar15.com/forums/t_3_4/670225_Anderson_lower_and_A2_grip_bolt_question_.html |
I checked both my Anderson and my Spikes lowers. The grip screw hole is not threaded all the way to the receiver cavity on either of those. I don't think its a defect and have not had an issue with the grip screw not tightening all the way. If your screw bottoms out on the thread just throw a washer or two on it. It's not like its a really big deal that people make it out to be. The griping on that other thread screams whiny entitlement first world problems to me. I mean WHAAA my grip wiggles a bit and I can't tighten the screw all the way on my $40 lower receiver. It must be then end of the world since everything isn't perfect WHAAAA ! Give me a break, it's not some massively out of spec thing like my trigger pins fall out or my magwell is too small so my mags don't fit. 
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The problem is that your grip screw is too long. I have seen this with a few cheap LPKs and you can either cut down the screw, use a different screw or use some spacers like washers to make it work. A few seconds with a dremel cut off wheel, a few seconds on the grinder, or some 1¢ washers take care of this "issue" nicely. If you can assemble an AR parts kit, then these mechanical tasks should be within the skill scope. |
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While there are easy fixes, that does not excuse the fact that they are not tapped properly, which is a concern others should be made aware of. "Mil spec" should be mil spec, regardless of price. Your screw is too long, not the receiver hole too short. What LPK are you using? |
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Your screw is too long, not the receiver hole too short. What LPK are you using? Quoted:
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While there are easy fixes, that does not excuse the fact that they are not tapped properly, which is a concern others should be made aware of. "Mil spec" should be mil spec, regardless of price. Your screw is too long, not the receiver hole too short. What LPK are you using? I've tried 4 different grip screws, they are all correct length. My prior 3 Anderson lowers did not have this issue. It's not the grip screw, it's incorrectly tapped screw hole. |
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Since you're all about milspec, how long is a milspec grip screw? I could check for you later. However it's kind of irrelevant since mil spec shows the screw threads entirely through, NOT with a specified depth. As already stated, it's not the screw, it's the reciever. If you look at the other thread, you'll see that Anderson has admitted this problem and is offering to fix those affected. Again, the point of my posting this was to make people aware and check theirs. |
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Was going to ask the same..... Quoted:
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Since you're all about milspec, how long is a milspec grip screw? Was going to ask the same..... What's your alls point?????? The lowers are not right and almost all grips screws are the same length. I installed my grip and screw ONE TIME! When I screwed the screw in I tightened it. Tight. Then I wanted to install a new FCG. I tried to loosen the screw and it didn't budge. The screw end mushroomed (I saw this after I drilled it out) and began to strip out the threads. So the screw broke from to much force. I had to drill out the screw and re tap. If I would have known about this I would have used a shorter screw or washer. I contacted AIM about this and they said I was the first to report this issue so I assumed it was an isolated incident. But mine wasn't the only issue. 
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first i have heard of it, and we have sold over 30,000 andersons Eh, AIM received an email, from me too, about it. Not an isolated case. I received an email back saying to contact the manufacturer. Instead of going through the manufacturer, I'll be finishing the tapping myself (as in the other thread, that's what Anderson said it would do to "fix" the receiver if you send it in. And apparently they've admitted to a bad run, as they've offered anyone with one of "these" to send it in and they'd "fix" (via finishing tapping) it for them. My guess is there are many out there that may not be aware of it, thus why I started this thread. Not to bash on Anderson, as I've used them many times, and will continue to do so... just to inform others to double check before they run into this issue. |
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Eh, AIM received an email, from me too, about it. Not an isolated case. I received an email back saying to contact the manufacturer. Quoted:
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first i have heard of it, and we have sold over 30,000 andersons Eh, AIM received an email, from me too, about it. Not an isolated case. I received an email back saying to contact the manufacturer. today was the first i have heard, how long ago did you send the email? |
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today was the first i have heard, how long ago did you send the email? Quoted:
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first i have heard of it, and we have sold over 30,000 andersons Eh, AIM received an email, from me too, about it. Not an isolated case. I received an email back saying to contact the manufacturer. today was the first i have heard, how long ago did you send the email? Sent my email Saturday, and received reply today (fast response considering I sent it on the weekend). This issue is in no way you're problem, I just wanted to make you (and others) aware of it. |
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Sent my email Saturday, and received reply today (fast response considering I sent it on the weekend). This issue is in no way you're problem, I just wanted to make you (and others) aware of it. Quoted:
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first i have heard of it, and we have sold over 30,000 andersons Eh, AIM received an email, from me too, about it. Not an isolated case. I received an email back saying to contact the manufacturer. today was the first i have heard, how long ago did you send the email? Sent my email Saturday, and received reply today (fast response considering I sent it on the weekend). This issue is in no way you're problem, I just wanted to make you (and others) aware of it. I sent one two weeks ago but it wasn't you Bryan that emailed me back. I even sent the above picture. Edit: Yeah definitely not a email bitching just asking if you guys heard about the problem. The returned email said they never heard of the issue and to contact Anderson as they will exchange it if its defective. |