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1911 NM Rear Sight

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Product Description

Our National Match style rear sight is designed to fit into the dovetail of GI pattern 1911 pistols.  Its extra thick serrated blade is .315" tall for compatibility with new production Colts, and features a .140" wide U notch. User installable (with some hand fitting), no machining required.  The newly revised design includes a more rounded profile and additional edge chamfers to improve comfort for handling and carry. 

  • FITS: GI pattern dovetails such as Colt and Springfield Armory with GI pattern sights.
  • Compatible with: front sights of .175-.185" height.  
Is direct replacement for Colt, Springfield Armory, and other 1911s with GI/Milspec rear dovetail. Compatible with factory front sight on Colt 1991A1, new production Series 70 reproduction, and Springfield Armory Milspec models, and does not affect point of impact.
**Be aware that older production Colts with the very low GI style "thumbnail" front sight will require a taller front sight to work with this rear. Machining of the slide is typically necessary and recommended to install a modern dovetail front sight. We neither recommend nor know of any options for traditional style staked on front sights. High profile staked on fronts were bad when we had them in the 80's - they fell off a lot due to the extra weight/inertia from the mass - and they are not any better of any option now that we have dovetailed fronts available.

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Product Reviews

Showing reviews 1-10 of 19 | Next

  1. great 5 Star Review

    Posted by on 13th Apr 2018

    Required a lot of fitting but the dovetail angles were right on so it fits great

    Really nice wide, deep sight notch for fast shooting

  2. Better late than never! 5 Star Review

    Posted by on 7th Oct 2016

    I find it amazing, but this sight concept was thought of by NYPD's Jim Cirillo (RIP) whom I trained under back in the nineties. Jim brought his concept to the attention to Ashley Emerson former owner of XS Sights. Apparently Emerson preferred the express sight Vee/Big Dot instead of the Big Dot sitting in the U-notch... their loss. I've tried XS sights... I could not get use to them. Then I found 10-8 Performance and a U-notch sight which now sits in the dovetail of my Commander with a white dot front sight resting comfortably in the U. Its so natural!

  3. Great sight 5 Star Review

    Posted by on 6th Aug 2016

    Installed on a 70 series Colt Government 1911 - fit and function is great. Used in conjuction with .185 front sight.

  4. Very Nice Sight 5 Star Review

    Posted by on 3rd Aug 2016

    Used this to replace the rear sight on a 5" 1991 A1 Colt slide. Takes a small amount of fitting but worth it when installed. Great sight pic and works well with OEM staked .185 front . Does not snag, enough of a shelf for one handed slide racking, windage adjustable and a set screw to keep it where you put it. If you are looking for an upgrade that is straight forward,effective and simple to install on a Colt spec slide dovetail this replacement sight is the one to choose.

  5. works good for me 5 Star Review

    Posted by on 29th May 2016

    I like this sight because it is simple and sturdy. It is relatively small compared to other sights that seem to stick out too far. This one matches the design and fits perfectly with the appearance of my Colt combat commander. And gives a good sight picture when combined with the .180 OEM type front sight.

  6. Truly premium product 5 Star Review

    Posted by on 20th Feb 2015

    Excellent machining, excellent finish, close initial fit, and expertly designed are all descriptive of this sight. In addition to these factors, this sight is also very reasonably priced. Overall, it is one of the best values when buying a GI rear sight. I absolutely love the attention to detail, as indicated by the nicely performed radius on the edges of the sight. I love it.

  7. Quality product 5 Star Review

    Posted by on 16th Jul 2014

    Excellent sight picture and quality product. Required a little filing to properly fit. Recommended

  8. Impressed with the sight 5 Star Review

    Posted by on 1st Dec 2013

    Had a gun smith remove my damaged original rear sight on my M199A1 & replaced with the 10-8 NM Rear sight. I actually prefer the new sight to the original one. Very impressed with 10-8's service!

  9. Much Improved Sight Picture 5 Star Review

    Posted by on 1st Dec 2013

    Put this on my RIA CS, replacing the GI sight. Had to do a little filing to get it to fit, but looks great. Have a FO on the front,the sight picture for my aging eyes is now much better and aquisition is much faster.
    Very happy with the product

  10. Great sight 5 Star Review

    Posted by on 21st Nov 2013

    Installed on an Auto Ordnance 1911A1 with a Trijcon front sight. Fast to get on target and improved accuracy.

Showing reviews 1-10 of 19 | Next

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