March 20th, 2017, 05:31 PM
Join Date: May 2006
Location: kerrville. texas
The USGI M1/M14 NM rear sight.
Those that use the iron sights and shoot for accuracy usually invest in a NM base and wind knob. These expensive parts are totally un-necessary, a standard set up will work just as well, that is for off the bench, where few movements are required by comparison.
It has come to mine that it is time to debunk several items that have grown and taken on a life of thier own. Lets start with the fit of NM hooded aperture into the NM rear sight base..
The NM aperture does not fit into the NM base, it dosen't fit because the base or aperture is out of spec.. Rather than admit "We made a mistake", they double down and convience folks you can now custom fit the aperture stem by stoning for a perfect fit...In some cases using a file.. Don't' believe it. Who has the skill to stone or file a stem and hope to keep the rails parallel??? We are stuck with them, do the best you can..
When the NM bases and NM hooded apertures came along the Match M1 was the Service rifle used. By the time the Matched conditionied M14's ruled, all the NM rear sight bases would accept the NM hooded stems, with room to spare, all I saw anyway, and that was a bunch..
With this room to spare, the base was modified and a tightening mod was done to prevent wobble. There are a few examples in a popular Manual showing the mods. This shown mod is Ok, but not the best by far. Don Mc Coy's, along with another RS base mod, was and still is the best USGI rear sight yet to be developed.. This may be one reason his rifles are prized, and folks don't even know it...
As far as you rifle is concerned, accuracy starts with a sound rear sight.. . Art