BLKSHEEP Posted December 2, 2014 Report Share Posted December 2, 2014 A little wobble is normal, that repr pictured cost a small fortune and yes it wobbles a little but doesn't bother me. This $5.00 part that Robo referred to will solve the wobble for you. http://www.brownells.com/rifle-parts/receiver-parts/receiver-hardware/accu-wedges/ar-15-m16-accu-wedge-prod16662.aspx Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 2, 2014 Author Report Share Posted December 2, 2014 A little wobble is normal, that repr pictured cost a small fortune and yes it wobbles a little but doesn't bother me. This $5.00 part that Robo referred to will solve the wobble for you. http://www.brownells.com/rifle-parts/receiver-parts/receiver-hardware/accu-wedges/ar-15-m16-accu-wedge-prod16662.aspx Yea I have a few of those here on my desk actually, heard a lot about them breaking apart & causing nightmare in peoples FCG. IMHO what im experiencing on my Aero .308 lower isn't a little. :mellow: Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 2, 2014 Report Share Posted December 2, 2014 I would shoot the piss out of that AP set, and not look back. Those pieces are fine, man. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 2, 2014 Author Report Share Posted December 2, 2014 I would shoot the piss out of that AP set, and not look back. Those pieces are fine, man. I’m thinking I should have went this route http://www.tieronearms.com/MEGA-MKM-p/mkmambi.htm more money sure, but im pretty sure i wouldn't have the fitment issues im having now. :binkybaby: <thumbsup> Quote Link to comment Share on other sites More sharing options...
lakeracer69 Posted December 2, 2014 Report Share Posted December 2, 2014 (edited) I’m thinking I should have went this route http://www.tieronearms.com/MEGA-MKM-p/mkmambi.htm more money sure, but im pretty sure i wouldn't have the fitment issues im having now. :binkybaby: <thumbsup> I see no fitment issues on that guys pic, even if you could place a Home Depot refund card ( .0215 ) in there. As a tool and die guy and rifle builder those parts are fine, without getting into tolerances and stacking of tolerences. If you feel the need to tighten up the upper and lower, either get a wedge, or bed down the rear lug. I hope you don't blame all accuracy issues on just the parts when you're done too. Geesh Edited December 2, 2014 by lakeracer69 Quote Link to comment Share on other sites More sharing options...
washguy Posted December 2, 2014 Report Share Posted December 2, 2014 Chris here's the easy fix...did this to a beater ar...you dont need a wedge ...also you dont need a square oring....a number 41 oring does the trick :) Wash Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 2, 2014 Author Report Share Posted December 2, 2014 I see no fitment issues on that guys pic, even if you could place a Home Depot refund card ( .0215 ) in there. As a tool and die guy and rifle builder those parts are fine, without getting into tolerances and stacking of tolerences. If you feel the need to tighten up the upper and lower, either get a wedge, or bed down the rear lug. I hope you don't blame all accuracy issues on just the parts when you're done too. Geesh The fitment issues are easy to see & the unacceptable play in the fitment of the upper/lower receivers is poor to say the least. When one works with metal its rather easy to see this as unacceptable i guess, mediocrity is what most people find acceptable these days but i don't sorry. An accu-wedge is not a good fix to a quality control issue & something that could break apart and cause other issues down the road. :ifly: Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 2, 2014 Author Report Share Posted December 2, 2014 Chris here's the easy fix...did this to a beater ar...you dont need a wedge ...also you dont need a square oring....a number 41 oring does the trick :) Wash washguy, I wish the play in my upper lower was that liitle, it wouldnt bother me. Thanks for the video. Quote Link to comment Share on other sites More sharing options...
washguy Posted December 2, 2014 Report Share Posted December 2, 2014 Chris Mega next time....fit and fitment are excellent. :) Wash Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 2, 2014 Author Report Share Posted December 2, 2014 Chris Mega next time....fit and fitment are excellent. :) Wash <thumbsup> I've e-mailed Aero, im sure they will take care of it. <thumbsup> Quote Link to comment Share on other sites More sharing options...
McCannicalBob Posted December 3, 2014 Report Share Posted December 3, 2014 I'm seeing the exact same thing with my "matched" set. Really loose. I've called and emailed AP but no response yet. I will say that after installation of the bcg and charging handle it is quite a bit better, probably good enough that it won't bother me (too much). I hope they take care of your problem. I do understand that some slop between receivers should have no effect on accuracy, but I also have read of so many people getting great fitting Aero Precision sets, and kind of feel like I got stuck with a bad set. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 3, 2014 Author Report Share Posted December 3, 2014 I'm seeing the exact same thing with my "matched" set. Really loose. I've called and emailed AP but no response yet. I will say that after installation of the bcg and charging handle it is quite a bit better, probably good enough that it won't bother me (too much). I hope they take care of your problem. I do understand that some slop between receivers should have no effect on accuracy, but I also have read of so many people getting great fitting Aero Precision sets, and kind of feel like I got stuck with a bad set. When I got home from my FFL & did notice the issue, I called Aero and was told to send pictures which I promptly did. I even PMed them on their industry section of ar15.com, I haven’t heard anything as of yet. I agree with you on some slop & accuracy and all my other Aero products have been great. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 3, 2014 Author Report Share Posted December 3, 2014 *UPDATE* Aero says "There will be some amount of play between receiver sets but that does seem to be excessive." So they are shipping me out a pre-paid shipping label & will get me out a new receiver set. <thumbsup> Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 6, 2014 Report Share Posted December 6, 2014 The fitment issues are easy to see & the unacceptable play in the fitment of the upper/lower receivers is poor to say the least. And, how many ARs have you built, or shot? What's your frame of reference here? Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted December 6, 2014 Author Report Share Posted December 6, 2014 And, how many ARs have you built, or shot? What's your frame of reference here? Enough to know whats bad & whats acceptable. :) Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Ok Aero sent me a new upper, it fits better. But... the ejection port door takes a lot of force to open & I have to use my pocket knife to push the detent down so it will close? All my AR15 ejection port doors open with minimal pressure at most & close with ease, is the .308 ejection port door suppose to be this tough to open & close? This is my 1st .308 AR build. <dontknow> :ifly: Quote Link to comment Share on other sites More sharing options...
washguy Posted January 3, 2015 Report Share Posted January 3, 2015 all of my ar 308's are just like an ar15 with ejection port doors.....you got a problem :) wash Quote Link to comment Share on other sites More sharing options...
survivalshop Posted January 3, 2015 Report Share Posted January 3, 2015 Oil the detent & work it a little & see if it free's up some . Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 3, 2015 Author Report Share Posted January 3, 2015 all of my ar 308's are just like an ar15 with ejection port doors.....you got a problem :) wash I was afraid of that lol. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Oil the detent & work it a little & see if it free's up some . it moves freely, I'll post up some pictures tomorrow. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 4, 2015 Author Report Share Posted January 4, 2015 (edited) http://vid89.photobucket.com/albums/k207/Christopher1067/IMG_2382_zpsgk4bthqy.mp4 Edited January 4, 2015 by Christopher67 Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 4, 2015 Author Report Share Posted January 4, 2015 (edited) http://s89.photobucket.com/user/Christopher1067/media/IMG_2383_zpstrq1ygrd.mp4.html Edited January 4, 2015 by Christopher67 Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 4, 2015 Author Report Share Posted January 4, 2015 (edited) Here a picture from the inside, not sure why the 2nd video is not working. Edited January 4, 2015 by Christopher67 Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 4, 2015 Author Report Share Posted January 4, 2015 Another. Quote Link to comment Share on other sites More sharing options...
Christopher67 Posted January 4, 2015 Author Report Share Posted January 4, 2015 Quote Link to comment Share on other sites More sharing options...
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