Just bought one from MAC1 and will drill/tap for same when I Steroid it in the next week or so. Pulling off the OEM rear sight before any separation occurs betwixt the barrel and pump cylinder. Remember that you'll need to pull the bolt to do the install. You'll either need to build up or purchase the tool to remove the bolt's cocking pin to allow the bolt removal....
i have put peep sights on my daisy bb gun & a cheep springer pellet gun by taking a crimp on wire terminal with a 1/8 hole in it and epoxy it too the back of the rear sight it makes a good peep sight with no mods. to the gun and can be removed if you need to
I've got an older Blue Streak. Where are the "factory holes"? On the left side holding the bolt stop?
I don't currently have an older Sheridan anymore, but here's the holes on a newer model I have without the sight installed. It's the two holes on the right side of the receiver. Those holes may not be there on the older models. I can't remember.
Thanks for the replies. My early 70s blue streak is not d & t. I can do that, no problem. Just looking to get some feedback if others like the improvement of the peep.