??? on A1/A2 aperature interchangebility

[Prairie Fire]

Will an A2 aperature fit an A1 upper? I'd like a ghost ring option in place of the 375m zeroed "L" marked aperature on the A1 sight. Don't want to drill out my A1 sight since there's no park tank handy here. Would like to just be able to swap out one for the other.

I've not looked around real hard yet, but some ads I've seen sell the A2 sight as an assembly only, I just want the aperature.

[carshooter]

Yes, the A2 aperature will fit as a direct replacement for the A1. I have it on both my A1 uppers.

[cqbdriver]

I don't like that fact that the two A2 apertures do not hit the same point of impact. I went with a same plane rear sight from http://www.xssights.com/store/tactical.html

"Precision Tactical Rear:

XS exclusive Same Plane design.
Allows the shooter to change apertures without changing the rifles zero.
Precision .100” I.D. aperture for great accuracy in daylight or at long range.
Fast acquisition .230 aperture for low light and CQB. "

[PALADIN-hgwt]

xxxxx

[ST911]

Will an A2 aperature fit an A1 upper? I'd like a ghost ring option in place of the 375m zeroed "L" marked aperature on the A1 sight. Don't want to drill out my A1 sight since there's no park tank handy here. Would like to just be able to swap out one for the other.

[ST911]

Be aware that the portion of the A2 aperture which actually fits on the windage screw is slightly wider than an A1 type. If your windage is already maxed out to one side, installing the A2 aperture may cause you to run out of adjustment too soon. HTH. Paladin

Correctable with better components or installation.

[SinnFéinM1911]

Don't forget the fact that the Counter-bore is cut the WRONG way onteh A2. The counter-bore should always be on the side away from you eye, not on the rear of the apperture.