1911 Government Model

(9 customer reviews)


The MMC sight for the 1911 GI model will fit the factory original dovetail and is installed with no modification to the slide. Since we have been making the gun for over 100 years, we have seen significant variations in dovetail dimensions and tolerances from various manufacturers. To date, we’ve not seen a gun to which the MMC sight could not be fit. Please note that the Remington R1 has a different dovetail; find that sight on the Remington page. Most will find it takes very little file work to fit sight to slide. If you have any trepidation about installation, please consult your local gunsmith.

  • Compatible with higher (3) dot style front sights (normally around .170”-.185” on 5” guns). Usually lower fronts will work on shorter guns. Front sights of .080”-.130” or so, will likely be too short.
  • High version is available for short, usually compensated Officer’s length guns like Springfield V-10 and such. Order MMC high version 1911. This model is sometimes a good choice for custom installations.
  • Blade height at median elevation position is .330” standard, and .370” for high version.
  • Sight notch is .125” wide x .090” deep.
GI-1911 sight closeup
Standard GI style rear sight and dovetail. MMC sight WILL fit.
Novak Sight closeup
Novak rear sight and dovetail cut. MMC sight WON’t fit.
Bomar Sight closeup
Extensive cut to accept the Bomar style sights. MMC sight WON’T fit.
SKU: N/A Category:

Adjustment procedure

Adjustment of the sight is quite simple. For windage, the set screw on the left side of the base is loosened with the included .050” hex key, and as previously mentioned, repositioned with a punch (punch should have blunt flat face and contact only the dovetail area). For elevation, use the same .050” hex key (or anything small and pointed – toothpicks work well) to depress the detent plunger on the right side of the base and twist the sight blade counterclockwise to raise the point of impact, clockwise to lower. Release detent to lock blade at the proper position.


Please do not use a sight pusher, and always wear eye protection.

This sight will fit the dovetail cut on the original 1911 Government Issue model, with some mild fitting involved. Please see sight dovetail pictures to verify correct application. The slide dovetail drawing can be found at 1911 dovetail.

The factory fixed rear sight is to be driven from the dovetail (usually left to right) with the proper punch. Don’t forget to use eye protection. The MMC sight is then fit to the slide by flat filing the ribs on the bottom of the dovetail until a tight interference fit is achieved. The left side set screw provides additional security.

MMC standard height 1911… available

MMC high version 1911… available

Sight notch is .125” wide x .090” deep

Available in:

Model Price SKU- Std 1911 SKU- High 1911
Plain Black $69.45 DGIPB DGHPB
White Dot $79.45 DGIWD DGHWD
White Bar (under notch) $73.90 DGIWB DGHWB

Tritium and fiber optic versions will soon be available.

9 reviews for 1911 Government Model

  1. Steve Anderson

    I installed the MMC Combat / Carry 1911 Adjustable Rear Sight, then tested it, making the following observations:
    The sight was beautifully finished, installed quickly and adjusted easily, displaying extraordinary care in its manufacture. I adjusted the elevation up and down, but that was really unnecessary, as the factory setting was already correct for my front sight at 25 yards. Those who want the ability to cycle the slide in an emergency by hooking the front of the rear sight against nearby objects, clothing or accessories will likely appreciate the tall, blunt front of the sight housing. The sharp sight notch corners made for a crisp sight picture, and the depth of the notch just barely included a complete view of the front sight dot. There’s plenty of clearance to keep the bottom of the sight housing from contacting, and possibly scraping, the top of the slide adjacent to the dovetail during installation. Therefore, it seems the perfect adjustable sight for a shooter choosing to maintain an unaltered, undamaged, factory-original slide on an historically significant or heirloom 1911 pistol. I will certainly recommend it to others for that use.
    Steve Anderson
    Armscor Precision International
    and Rock Island Armory

  2. Jon DeGuzman

    I currently on own a Colt Series 70 1911 in 9mm and have always enjoyed shooting it but felt I could be better. The factory rear and front sights were at ok at best and I felt like it was the Achilles heel of this particular model. Being an older 1911, I was in the market for upgrading the sights.

    I came across the MMC Combat/Carry adjustable rear sights and found out the company was a locally owned and operated here in the Fort Worth, Texas area. I reached out to MMC and I was contacted by Rob (owner) of MMC. Being a gun novice, I had many questions but Rob was so helpful and took the time to explain my options as well as helping me figure out my next plan of action.
    After installing the MMC sight- I feel like my older Colt 1911 was instantly transformed to an up to date modern shooter. Build quality was top notch but functionality is the key word. After taking the gun to the range a couple of times, the MMC sight has dramatically improved my shooting and has given me a new appreciation for my Colt 1911. I would highly recommend this product and give Rob an A+ rating for quality and customer service!!

  3. Jason Holbert

    Bought the adjustable rear sight for my 1911 and couldn’t be happier. Sight has a solid, well-machined feel to it and was one of the easiest (and worthwhile) upgrades I’ve made to any of my handguns. The adjustment mechanism feels solid and the white detail on the combat sight itself is clean and bright and makes quick alignment easy for my combat action shooting events.

  4. Chris

    Purchased the MMC white dot adjustable sight for my M1991 A1 Colt. Installation was quite easy and required only minor filing to fit the factory dovetail. It was important to me to keep the gun in original condition. The MMC sight works beautifully with the white dot factory front sight. Very happy that I didn’t have to replace that at additional expense. Quality of the machined parts is near flawless. Thanks also for the same day shipping!

  5. Kirk Schottler

    Years ago i had a 1911 with the original MMC rear sight, now i needed one for IDPA and heavy metal 3-gun, so that we could change loads and bullet weights…this sight really fills the bill, it is not fragile, the adjustment is quick and easy, installation is great considering getting to keep the original front sight. As a gunsmith and competitor simple and easy is desirable. Be warned… your competition will see yours and want one… and the owner, Rob knows his stuff and a nice guy to boot. Great Sight.

  6. JEL (verified owner)

    I put this on a Springfield Mil Spec 1911 that I could hardly hit the broad side of a barn with using the original sights. First time to the range with the MMC rear sight I was able to shoot one ragged hole at 15 yards. Totally different gun with this sight. Amazing.

  7. Dylan Watson (verified owner)

    Really love your sight! I makes me feel far more confident having this sight on my carry pistol. A great way to update the G.I. without braking the bank. Quality product, keep up the great work.

  8. Ryan Linder (verified owner)

    My Para 1911 Expert was shooting ~3″ low at 8 yards and ~10″ low at 25 yards with the stock rear sight. Even if I swapped the front sight with a significantly shorter post (in fact removed it entirely), I would always shoot low. Basically, the stock rear sight was way too short.
    I installed this sight, took it to the range and adjusting the height, I was dead on in about 5 shots. Now at 8 and 25 yards, the sights are true; what a concept: now the bullets go where I aim. I look forward to using this pistol for Action/Practical pistol at my gun club and there was no way I would try without these sights. I planed to conceal carry this 1911 during the winter months and now that I can rely on these sights, I won’t hesitate. Not only do I know the sight picture is accurate and even though it’s larger than the stock post, it is less of a snag hazard.
    This is well built (clearly built to last and hold up to potential abuse), but not a potential snag concern–nice smooth and rounded “edges.”
    My Para 1911 is now a go to gun at the range and a tack driver: no longer have to aim over the target anymore. It’s like having a whole new gun.

  9. Tim Riffe (verified owner)

    5/12/20. These sights are a sure fix for those of us who have filed some on the front sight. No more – and these sights are perfect if you want to increase your confidence. I had to make 2 passes with a flat file to install. Shipping was good. If you own a ATI Commander try this sight first.

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