--- product_id: 1679255 title: "UM3 Rear Sight Mount for Pistols" brand: "um tactical" price: "HK$1084" currency: HKD in_stock: true reviews_count: 9 category: "Um Tactical" url: https://www.desertcart.hk/products/1679255-um3-rear-sight-mount-for-pistols store_origin: HK region: Hong Kong --- # Holds zero after removal Tool-free install <30s CNC anodized aluminum durability UM3 Rear Sight Mount for Pistols **Brand:** um tactical **Price:** HK$1084 **Availability:** ✅ In Stock ## Summary > 🎯 Lock your aim, unlock your edge. ## Quick Answers - **What is this?** UM3 Rear Sight Mount for Pistols by um tactical - **How much does it cost?** HK$1084 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/1679255-um3-rear-sight-mount-for-pistols) ## Best For - um tactical enthusiasts ## Why This Product - Trusted um tactical brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Install or remove your red dot mount in under 30 seconds—no tools, no gunsmith needed. - • **Lifetime Confidence:** Backed by a lifetime warranty and designed to pair seamlessly with UM Tactical’s universal holster system. - • **Rock-Solid Accuracy:** Maintains zero perfectly even after repeated removal and reinstallation—never miss your mark. - • **Premium Build Quality:** Crafted from CNC-machined 6061 aluminum with a sleek black hardcoat anodized finish for lasting durability. - • **Universal Compatibility:** Fits virtually all pistols with MIL-STD-1913 Picatinny rails, from Glock to Springfield and beyond. ## Overview The UM3 Rear Sight Mount is a precision CNC-machined aluminum adapter that fits any pistol with a MIL-STD-1913 Picatinny rail. It enables tool-free installation in under 30 seconds while holding zero perfectly after removal, supporting a wide range of red dot optics without permanent slide modifications. Finished with a durable black hardcoat anodized surface and backed by a lifetime warranty, it’s the ultimate upgrade for tactical shooters seeking quick adaptability and rock-solid accuracy. ## Description UM Tactical has created a universal pistol site mount that will fit most hand guns with a 1913 picatinny rail, tactical rail or accessory rail. This high quality piece is constructed from CNC machined aluminum and is finished in an attractive anodized matte black color. The piece is easily mountable and dismountable from your gun in under 30 seconds with no retrofitting or tools required. UM 3 Universal Pistol Sight Mount is also design to work with the UM Tactical UMH3c Universal Speed Holster. So all you need is ONE mount and ONE holster for all your tactical handguns. Will fit most hand guns with a 1913 picatinny rail including-Smith & Wesson: S&W 1911 TA, SD40 VE, M&P.40 M&P 9MM, M&P.357 M&P 45 Sig Sauer: 220, P226, P227, P229, P250, SP2022, Mosquito Walther: PPQ PK-380, CCP, PPS Springfield: XD-M, XD, 1911 Operator Taurus: PT92 CZ-USA: P-09 Duty, P-07 Duty, P-01, 75 SP-01, 75 SP-01 Tactical, P-09 FDE, Shadow Target, 75 Compact SDP Beretta: PX4 Storm, 92A1, 96A1 Kel Tec: PMR-30 Colt:.45ACP GLOCK: G41, G38, G37, G35, G34, G32, G31, G30S, G23, G22, G19, G17 FHN USA: FNS, FNX, Five-Seven H&K: P30, HK45, P2000 Chiappa: 1911-22 Magnum Research: Baby Desert Eagle. Review: Well Worth The Price - If you are having difficulty with sight picture alignment because of "old" eyes, like I was, I looked for a solution and stumbled across the UM tactical sight mount for red dot sights. I read all the reviews, and finally pulled the trigger (pun intended) and purchased the UM tactical sight mount, Burris fast fire III red dot sight and UM tactical UMH3CR universal holster for my 4" XD45. The mount goes on easily and in seconds. It is a great fit and is a quality build. The Burris fast fire III is really, really small, but fits the XD45 size perfectly, and the UMH3CR universal holster is a great fit for the UM mount. It is a great hip holster and is not as cumbersome as it "looks" like it would be. I could not have made a better choice and am very pleased with this 3 item addition to my XD45. I highly recommend these 3 items to any of the many handguns, and their owners, that they will fit. My only snivel (there is always 1 right?) is that Burris's red dot will, at times, go off, then within 2-3 seconds come back on after taking the shot. I don't know if this is natural (for $214) it shouldn't be, but all I had to do was (if it was a hurry next shot) use the iron sights that 1 time and for the next trigger squeeze the dot would be back on. Being retired Army Infantry from many years ago, I am kinda used to items that don't always work as they should and have "quirks" that must be dealt with. All in all, I am happy for the purchase and overall "ease of firing" that I now have with my XD45. Review: Quality for the money! - So I initially wanted this for my HK P30sk but I have a matchweight attached to my pistol so the UM3 rail mount won't fit. Otherwise, it woulda been a great mod to add to my firearm. However, I did attach it to my Sig X5 Legion and works fine. I have yet to attach the optic to it so we'll see! Quality and build is A+! ## Features - HOLDS ZERO AFTER REMOVAL — CNC-machined mount keeps your red dot sighted in even after repeated removal and reinstallation; no re-zeroing when switching between optic and iron sights. - TOOL-FREE INSTALL IN UNDER 30 SECONDS — Thumb-tighten clamp attaches or detaches with no tools, no drilling, and no gunsmith work; preserves factory iron sights and original slide. - UNIVERSAL PICATINNY FIT — Fits most pistols with a MIL-STD-1913 Picatinny rear sight rail (Glock, Springfield XD, S&W M&P, etc.). Use UM3X for pistols with a machined-out rail center. - MOUNT ANY RED DOT OR MICRO OPTIC — COMPATIBLE WITH Trijicon RMR, Burris Fastfire, Vortex Venom, Leupold DeltaPoint, and most holographic/reflex sights; no permanent slide modifications. - LIFETIME WARRANTY / BUILT TO LAST — CNC-machined 6061 aluminum with black hardcoat anodized finish; pairs with UM Tactical UMH3 universal holster. Backed by a lifetime warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00L5QZ4YU | | Best Sellers Rank | #296,964 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #464 in Airsoft Gun Scope Mounts #32,252 in Hunting Equipment | | Brand | UM Tactical | | Brand Name | UM Tactical | | Color | Black | | Customer Reviews | 4.2 out of 5 stars 203 Reviews | | Included Components | Mount | | Item Dimensions | 7 x 7 x 7 inches | | Item Type Name | Universal Sight Mount | | Item Weight | 0.16 Pounds | | Item dimensions L x W x H | 7 x 7 x 7 inches | | Manufacturer | UM Tactical | | Manufacturer Part Number | UM3 | | Manufacturer Warranty Description | Lifetime Warranty | | Material | Aluminum | | Material Type | Aluminum | | Model Number | UM3-BLK | | UPC | 751738827697 753677799943 | ## Images ![UM3 Rear Sight Mount for Pistols - Image 1](https://m.media-amazon.com/images/I/61DOViRC6vL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well Worth The Price *by C***S on October 11, 2015* If you are having difficulty with sight picture alignment because of "old" eyes, like I was, I looked for a solution and stumbled across the UM tactical sight mount for red dot sights. I read all the reviews, and finally pulled the trigger (pun intended) and purchased the UM tactical sight mount, Burris fast fire III red dot sight and UM tactical UMH3CR universal holster for my 4" XD45. The mount goes on easily and in seconds. It is a great fit and is a quality build. The Burris fast fire III is really, really small, but fits the XD45 size perfectly, and the UMH3CR universal holster is a great fit for the UM mount. It is a great hip holster and is not as cumbersome as it "looks" like it would be. I could not have made a better choice and am very pleased with this 3 item addition to my XD45. I highly recommend these 3 items to any of the many handguns, and their owners, that they will fit. My only snivel (there is always 1 right?) is that Burris's red dot will, at times, go off, then within 2-3 seconds come back on after taking the shot. I don't know if this is natural (for $214) it shouldn't be, but all I had to do was (if it was a hurry next shot) use the iron sights that 1 time and for the next trigger squeeze the dot would be back on. Being retired Army Infantry from many years ago, I am kinda used to items that don't always work as they should and have "quirks" that must be dealt with. All in all, I am happy for the purchase and overall "ease of firing" that I now have with my XD45. ### ⭐⭐⭐⭐⭐ Quality for the money! *by J***N on September 1, 2025* So I initially wanted this for my HK P30sk but I have a matchweight attached to my pistol so the UM3 rail mount won't fit. Otherwise, it woulda been a great mod to add to my firearm. However, I did attach it to my Sig X5 Legion and works fine. I have yet to attach the optic to it so we'll see! Quality and build is A+! ### ⭐⭐⭐⭐ Great performance on a metal frame. Mediocre on polymer guns. *by D***K on December 15, 2018* So, I am a competitive shooter. I'm not sponsored, but I do pretty well at the amateur level in 3-gun and Steel Challenge. I win my class in most of the local matches that I frequent, and they are usually more precision oriented. I am not really a fan of optics on pistols, and I shoot in the most restrictive classes where I have to use iron sights on my pistol anyway. However, I have been itching to see what kind of accuracy my pistols are capable of without having to go all-in on a ransom rest. This mount seemed like a good choice since I could use a pistol scope or red dot from a bag rest to get a good idea of what the pistols can do. Today was my first time using the mount. I tried it on a Gen3 Glock 17L, a Gen3 Glock 17, a Polmer80 PF940 frame, an M&P45 Full Size, a CZ P-09 9mm, a CZ SP-01 9mm, a S&W MP22 Compact, a Beretta M9A1-22. The mount slid on snugly on all the pistols, and when my red dot (Bushnell TRS25) was tightened onto the rail, the connection was solid. Since you can still easily use the iron sights while the rail is mounted, setting the dot to the same point as the irons was easy and got me on paper for the first shot with each pistol. When I began testing different ammunition from each gun I found some issues that potential buyers should be aware of. I can usually shoot 2-2.5" 5-shot groups from a rest with each of these pistols using the iron sights and ammo that they like. My polymer-framed guns were doing around 3" on average with some uncalled fliers. Clearly, when the polymer rail on the frame flexes under recoil it does not reset to the same spot each time. On a metal-framed pistol this mount really shows what a pistol is capable of. On the SP-01 I fired five 5-shot groups with 5 differenmt types of ammo. With irons I normally get my same 2-2.5" groups at 25 yards. With poor lighting and a red dot on the UM3 my best group was 5/8" using Browning Performance Target 147 grain. 4 out of 5 shots were touching, and the 5th just left a tiny bit of paper between the rest of the group. 3 of the other ammunitions grouped around an inch, and the final ammunition was about 1.5". I honestly had no idea that this bone stock pistol could shoot so well. I went to the 50 yards line and was able to stand and shoot steel PPC 10-ring sized plates over and over again without a miss. I cannot do that consistently with irons even on a good day. Unfortunately, this mount will not be capable of showing me what my polymer-framed guns are capable of, which is disappointing. I think potential buyers should be aware of this issue on polymer pistols. While it is not really a shortcoming of the product itself, and really that of the rail on a polymer gun, it is still an issue of compatability. Now, if you have a polymer pistol, and 3" or a little worse groups at 25 yards are acceptable for your application, by all means go for this mount. The added weight of the mount and a red dot made recoil even more controllable, and I was able to run a Glock plate rack a little faster than I usually can with irons. All-in-all I think this is a good product, but it doesn't fully fill the role that I hoped it would. ## Frequently Bought Together - UM Tactical UM3 Universal Sight Mount - Precision Optics Mounting Solution Fits All Lower Picatinny Rails No Tools Required, No Drilling, Anodized Aluminum, Fits Any Optic - Feyachi Reflex Sight - Adjustable Reticle (4 Styles) Both Red and Green in one Sight! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/1679255-um3-rear-sight-mount-for-pistols](https://www.desertcart.hk/products/1679255-um3-rear-sight-mount-for-pistols) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-06-26*