Hi All, I recently purchased a Rossi 92 in 44 mag. I am looking to install the XS sights ghost ring (https://www.xssights.com/Detail.aspx?PR ... 6&CAT=8408). The mounting instructions on the website only seem to apply to the front sight post. Does anyone know if the rear sight mounts in front of or behind the locking lugs? From google search, it appears that folks have them installed in both places. Can anyone confirm the correct placement?
Thanks!
XS Sights Installation - Front of or behind lugs?
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Re: XS Sights Installation - Front of or behind lugs?
Have you called them? I have XS sights on a number of firearms and have found them very easy to talk with.
Michael
Re: XS Sights Installation - Front of or behind lugs?
Thanks, I emailed but have not heard back yet.
Re: XS Sights Installation - Front of or behind lugs?
Here is a copy of the reply from XS sights. They confirmed that install of rear sight should be forward of locking lugs. They also indicated that XS sights just simply won't work on certain 92's due to variations in receiver width.
"On most 92’s it will require drilling & tapping (2) #6-48 screw holes in the top rear edges of the receiver in a manner similar to how they are done on the Winchester 94 Angle Eject rifles.
Front to back you will locate the rear sight just ahead of the luging lugs much like how it is done on the 86 rear sight shown above.
The screw center to center spacing is 0.770”. Strip the rifle down and measure the width of the opening the breech bolt runs in. Subtract that number from 0.770” and then divide the result by 2. That is how far from each inside edge you should locate the center of one of the #6-48 screws.
Once you have it laid out, double check things to ensure that when your drill the screw holes that they aren’t going to break through on the inside or that whoever built the 92 hasn’t put so much outside edge chamfering that the flat on top will not have a full diameter screw hole in it when you start drilling. If the top flat is narrow and the outside edge of the screw radius isn’t on the top flat the drill can want to walk toward the unsupported edge causing the hole location to drift or be drilled not perpendicular to the receiver top.
There are some 92’s that the top flats are just so narrow that you cannot drill & tap them because they so heavily chamfered the receiver edges.
There are a few 92’s where the breech block opening is so wide that the screws would break out on the inside of the receiver.
When drilling the holes you only want to go down until you feel the drill bit begin to break into the slot that the side races of the breech block runs in. Since the bit nose once it breaks into the race will want to drift towards the unsupported area and oblong out the hole.
When tapping you may have to shorten the starter lead on the tap and then use a bottoming tap to finish the hole out so you have enough threads."
"On most 92’s it will require drilling & tapping (2) #6-48 screw holes in the top rear edges of the receiver in a manner similar to how they are done on the Winchester 94 Angle Eject rifles.
Front to back you will locate the rear sight just ahead of the luging lugs much like how it is done on the 86 rear sight shown above.
The screw center to center spacing is 0.770”. Strip the rifle down and measure the width of the opening the breech bolt runs in. Subtract that number from 0.770” and then divide the result by 2. That is how far from each inside edge you should locate the center of one of the #6-48 screws.
Once you have it laid out, double check things to ensure that when your drill the screw holes that they aren’t going to break through on the inside or that whoever built the 92 hasn’t put so much outside edge chamfering that the flat on top will not have a full diameter screw hole in it when you start drilling. If the top flat is narrow and the outside edge of the screw radius isn’t on the top flat the drill can want to walk toward the unsupported edge causing the hole location to drift or be drilled not perpendicular to the receiver top.
There are some 92’s that the top flats are just so narrow that you cannot drill & tap them because they so heavily chamfered the receiver edges.
There are a few 92’s where the breech block opening is so wide that the screws would break out on the inside of the receiver.
When drilling the holes you only want to go down until you feel the drill bit begin to break into the slot that the side races of the breech block runs in. Since the bit nose once it breaks into the race will want to drift towards the unsupported area and oblong out the hole.
When tapping you may have to shorten the starter lead on the tap and then use a bottoming tap to finish the hole out so you have enough threads."