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Issues with 9mm Aero upper and Angstadt Arms lower Login/Join 
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Picture of Loswsmith
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I have a 9mm Aero upper that I am using with an Angstadt Arms lower. I just installed it and took it to the range and it locks back on a full magazine after each shot. Looking at it, there is a rod, sort of like a thin allen wrench, on the upper that is tripped by the lower to be the magazine catch spring (I guess), that is super stiff and I'm wondering if that is the issue. Magazines and ammo make no difference and the lower functioned fine with the Foxtrot Mike upper I had on it previously.

Thoughts?

I was going to post pictures but I wasn't sure what I should be posting a picture of so . . . I'm happy to do that if you tell me what to take.


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Life Member NRA & Washington Arms Collectors

Mistake not my current state of joshing gentle peevishness for the awesome and terrible majesty of the towering seas of ire that are themselves the milquetoast shallows fringing my vast oceans of wrath.
 
Posts: 1478 | Location: T-town in the 253 | Registered: January 16, 2013Reply With QuoteReport This Post
Green grass and
high tides
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I have not heard of that lower before. Take a couple pix of it. FTM's are good to go so I doubt that is the problem.
Glock mag lower?



"Practice like you want to play in the game"
 
Posts: 17299 | Registered: September 21, 2005Reply With QuoteReport This Post
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There are some many variations of this that one would need some more info. What mag type for starters?


“So in war, the way is to avoid what is strong, and strike at what is weak.”
 
Posts: 10082 | Registered: October 14, 2004Reply With QuoteReport This Post
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Picture of Rustpot
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Are you using the Aero EPC upper that has a LRBHO catch in conjunction with an Angstadt lower that has its own LRBHO feature? If so they're not playing nice is my guess.

Edit:
The Aero EPC upper is distinctive with a plate and catch bar on the left side. It stands out on this photo of their FDE version

https://d2df4e9l5rljaz.cloudfr...er-w-lrbho-fde-2.jpg
 
Posts: 6002 | Location: Romeo, MI | Registered: January 03, 2009Reply With QuoteReport This Post
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Picture of Loswsmith
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quote:
Originally posted by Rustpot:
Are you using the Aero EPC upper that has a LRBHO catch in conjunction with an Angstadt lower that has its own LRBHO feature? If so they're not playing nice is my guess.

Edit:
The Aero EPC upper is distinctive with a plate and catch bar on the left side. It stands out on this photo of their FDE version

https://d2df4e9l5rljaz.cloudfr...er-w-lrbho-fde-2.jpg


Yes, they both have their own LRBHO feature and I too suspect that they aren't playing nice. I had been thinking about taking out the Aero feature.

Mags tried: magpul pmag g17, 22, 27, OEM Glock 17 (2 different).


___________________________________________
Life Member NRA & Washington Arms Collectors

Mistake not my current state of joshing gentle peevishness for the awesome and terrible majesty of the towering seas of ire that are themselves the milquetoast shallows fringing my vast oceans of wrath.
 
Posts: 1478 | Location: T-town in the 253 | Registered: January 16, 2013Reply With QuoteReport This Post
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Picture of Rustpot
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You should be able to remove the plate from the upper and fire it without that set of LRBHO hardware. If that's your fix it should be pretty easy to defeat the mechanism, or switch it out for a plain upper.
 
Posts: 6002 | Location: Romeo, MI | Registered: January 03, 2009Reply With QuoteReport This Post
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Picture of Loswsmith
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I'm going to try that. Thanks!


___________________________________________
Life Member NRA & Washington Arms Collectors

Mistake not my current state of joshing gentle peevishness for the awesome and terrible majesty of the towering seas of ire that are themselves the milquetoast shallows fringing my vast oceans of wrath.
 
Posts: 1478 | Location: T-town in the 253 | Registered: January 16, 2013Reply With QuoteReport This Post
Tupperware Dr.
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On the Angstadt lower, there is a pivoting lever on the left side of the lower which has a horizontal tab which engages the little shelf on the Glock mags follower as the follower comes up to empty as the gun is fired.

That tab can be GENTLY bent to adjust the final alignment with different uppers in order to have perfect bolt lock open on an empty mag.

If you need help feel free to email me and we can chat on the phone. Hope that helps.
 
Posts: 3423 | Registered: December 28, 2008Reply With QuoteReport This Post
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