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Posted: 7/15/2017 1:16:04 PM EDT
I'm looking for an adapter to attach my AAC Aviator 2 onto a Beretta 71 that came with 1/2×20 threads.  I saw one on gunbroker last week, but it is already sold and I can't find another like it or even the manufacturer for it.  Anyone else have luck finding a 1/2×20 female/ 1/2×28 male adapter for one of these?

Here's the gunbroker link to the one I wanted to buy...

http://www.gunbroker.com/item/651614108
Link Posted: 7/15/2017 2:23:05 PM EDT
[#1]
I got mine from Gemtech for my CZ 452 .22
Might be the same thread pitch for a Walter p22?
Link Posted: 7/15/2017 2:28:10 PM EDT
[#2]
Send the barrel to class 3 machining. He did mine, re threaded the barrel to a smaller thread pitch then made a custom adapter back up to 1/2x28.
Link Posted: 8/27/2017 2:18:41 PM EDT
[#3]
Silencerco makes a very nice adapter that I used on my 71.

https://www.store.silencerco.com/collections/silencer-accessories/products/rimfire-adapters?variant=1107305868

Bit pricey but worth it.

ETA: I checked the GB link and looks like the seller has relisted them. After looking at the adapter and the item desc. it's definitely a better fit for the 71.
Link Posted: 9/3/2017 1:53:15 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Send the barrel to class 3 machining. He did mine, re threaded the barrel to a smaller thread pitch then made a custom adapter back up to 1/2x28.
View Quote
+1

He did mine and it is perfect. Super nice guy as well.
Link Posted: 9/4/2017 1:48:01 AM EDT
[#5]
I had ADCO chop the old threads off, thread the inside and make an adapter to attach my Sparrow. I am very happy with the work.
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