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1/25/2018 7:38:29 AM
Posted: 3/15/2006 5:43:17 AM EST
Maybe I'm slow or something but I'm confused. This being my first build I have read a ton of info on this board to help me along. I have an A1/C7 upper and wanted to change the A1 aperature to an A2 aperature as many recommend. I ordered a new A2 aperature and, Suprise, it doesn't fit. It's not threaded so the existing screw won't fit. ht, Probably

A link if this has been covered or any help would be appreciated
Link Posted: 3/15/2006 10:29:27 AM EST
I would like to know more about this too.
Link Posted: 3/15/2006 12:50:45 PM EST
Link Posted: 3/15/2006 1:32:25 PM EST

Originally Posted By Stickman:
A standard A2 aperature should screw in without any problem. I have done this for several of my A1 uppers.

Given the alignment is close enough. The A-2 is wider, not as much windage to zero when mounted in a A-1 upper. If your A-1 shot with the sight centered [best case], The A-2 will work [nicely].
Toss the defect and get a sight with threads. Also, look at the quality of the apperature before mounting. Some are poorly made and will offer poor optical performance.
Link Posted: 3/15/2006 2:25:27 PM EST
This blows. hinking.gif I thought it should work. Thanks for the feedback, guess I'll send it back or maybe just do with the A1 sights for a while. Hell, I havn't even fired my new toy yet.
Link Posted: 3/15/2006 4:14:44 PM EST
Link Posted: 3/16/2006 2:43:47 AM EST
Ordered some small parts from Del-Ton.
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