Repro Rear Sight Collar

[CptEnglehorn]

Has anyone used the repro bases from Numrcih, or any of the others out there, hows the quality, I suspect its not as good as id like it to be, but USGI collars are getting pretty hard to come by.

[chuckindenver]

some fitting is needed..not bad, but not real good ...no cross pin hole. and no alignment pin

[CptEnglehorn]

sounds like it takes a good hand of extra work to get right. thanks for the review.