Selling Redfield Series No. 70 Micrometer Receiver Peep Sight w/Adjusting Knobs & Aperture|Winchester Swap Meet|Forum|Winchester Collector

Don,  if you can read the letter code on the base (it may take a magnifying glass), I’ll look up the application. 

From the concave base it’s for a bolt gun. I thought for a moment I could read a “V” but it could just have been a scratch.

These are precise and beautifully made  sights, as long as you don’t need a quick release staff. The Model 80, its replacement, added that feature. Unfortunately, the 80 has pins where the 70 had screws and, toward the end of production, substituted an aluminum receiver. 

I’m fortunate to have a 70 coded “E” for the Winchester lever actions and have taken it off several 94, 64 and 53 specimens before sending them down the line. Bought it from the late Gary Fellers Decades ago. I prefer it to the Lyman 56 and 66. 

Don, it is usually on the inside surface of the mounting block.  You’ve photographed that part, which shows a lot of abrasión that may have effectively removed it. 

There is another possibility. Redfield offered a “gunsmith’s” version of the base that was just a flat slab that could be custom milled to fit. It had no application code. 

Here’s an application code chart.

Ben said
I’ve long passed trying to figure out Refield 70 series sights.   It is a right hand mount… so that eliminated most Winchesters.  That’s all I’ve got…
  

Ben,  Thank you for noticing that it’s a right hand mount- I missed it entirely.  Several military rifles and their derivatives [if not modified], require a receiver sight to be mounted on the right-hand side: 

• The Mauser 98, because of it’s large left-hand bolt stop enclosure; Lyman 48M fits.
• The 1903 Springfield, because of its left-hand bolt stop and magazine cutoff; Lyman 48S fits.
• The Krag-Jorgensen, because of its sideplate configuration and left-protruding magazine; the Lyman 48K fits.
• The U. S. 1917 Enfield/Remington Model 30, because of its left-hand bolt stop and “ears”; the right-hand ear must also be milled off. The Lyman 48R fits. 

Of those rifles, the Redfield 70 offers these applications, which are necessarily right-handed:: 

70M (Mauser), 70S (Springfield and Newton), 70K (Krag), 70R (Remington 30), 70RW (modified Enfield). Also, 70Y for certain right-hand Mossberg models.  

I’m not sure this information narrows it down enough, particularly since none of those rifles are likely to be drilled and tapped for a receiver sight. Installing one is a gunsmithing job of moderate difficulty, ideally employing an elaborate fixture to perfect the over-bore height.

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Don,  you’re welcome.  I’ve been curious myself about right-handed receiver sights ever since I saw one on a customized 1917 Enfield  65 years ago.

Aperture sights became important to me after I hit 50 and still wanted to shoot iron sights.  I love the look of the 1886 Fancy/Deluxe originals but my budget has limited me to a 1949 M71 Special and a nice shooter grade LW .33 WCF. The 71 wears a Redfield 80W-T I had to pay too much for and the 33 came with an original Lyman tang. 

So what to do about a fancy/deluxe to shoot? I’m less allergic than some to rice-powered Winchesters and found a Tennessee dealer in mild financial distress with a new Winchester Deluxe configuration 1886 45-90, 24″ octagon barrel, steel capped pistol grip, nicely checkered straight-grain Walnut. We came to a rapid understanding involving my plastic and no upcharge. It has lots of weight forward for offhand shooting. Beautifully finished, mechanically it is impressively slick and reliable.

It can’t be tang-sighted because of the otherwise unobtrusive tang safety. However, somebody at Browning with enough mojo to make things happen must be a hunter because the receiver is drilled, tapped and plugged for a receiver sight. It happens I have an NIB Lyman 56A. The correct code for an 86 receiver is  “W” – the difference being a slightly longer bridge for the wider receiver. The “A” is coded for the 92/94 but has plenty of windage for the 86. Because the 56W was factory catalogued equipment for the M71, they now are stupid expensive. 

The Lyman 56 was introduced in 1935, coincident with the Model 71 and the cessation of production of the 1886, but its appearance on a vintage

While there are those who are outraged by the very existence of the new Winchesters, few of such have ever hunted with or shot one. To whom I will  only quote my wise great grandmother’s advice:

“Zebulon, Nevah try t’ larn a hawg t’ sang. Iss a waste a yo tahm an’ it irritates tha hawg.”