# Glock G40 Gen 4 MOS 10mm - Precision Optic-Ready Powerhouse **Brand:** Glock **Category:** Full Size Handguns **Caliber:** 10MM AUTO ## Specifications - **Caliber:** 10MM AUTO - **Barrel Length:** 6" - **Capacity:** 15 rounds - **Finish:** Black - **Weight:** 35.45 oz - **Overall Length:** 9.49" - **UPC:** 764503002670 - **SKU:** UCDSUKghS ## Description The Glock G40 Gen4 MOS is a full-size 10mm Auto pistol with a 6.02-inch cold hammer-forged barrel and the Modular Optics System slide. It holds 15+1 rounds and ships with three magazines. Overall length is 9.49 inches and weight is approximately 44.62 oz (2.8 lbs). The polymer frame uses a matte black finish with textured finger-grooved grip and interchangeable backstraps. ### Key Specifications - **Brand:** Glock - **Model:** G40 Gen4 MOS - **Caliber:** 10mm Auto - **Capacity:** 15+1 rounds (includes three magazines) - **Barrel Length:** 6.02 inches - **Overall Length:** 9.49 inches - **Weight:** Approximately 2.8 lbs (44.62 oz) - **Action Type:** Safe Action (Striker-fired) - **Frame Material:** Polymer with matte black finish - **Grip Style:** Textured Black Finger Grooved with Interchangeable Backstrap ### Detailed Features The MOS slide has a factory-machined mounting platform that takes adapter plates for common red dot footprints, no gunsmithing needed. Adjustable rear sights and fixed front sights let you dial in zero. Interchangeable backstraps adjust grip circumference to fit different hand sizes. The 6.02-inch barrel gives the longest sight radius in the standard Glock 10mm lineup. ## Frequently Asked Questions **Q: What caliber is the Glock G40?** A: The Glock G40 is chambered in 10mm Auto. **Q: Who makes the G40?** A: The G40 is made by Glock. **Q: What type of firearm is the Glock G40?** A: It is a full-size, striker-fired semi-automatic pistol with a polymer frame. **Q: What is the barrel length of the Glock G40?** A: It has a 6.02-inch cold hammer-forged barrel. **Q: How many rounds does the Glock G40 hold?** A: It has a 15+1 capacity and ships with three magazines. **Q: Is the Glock G40 optic-ready?** A: Yes. The G40 Gen4 MOS features the Modular Optics System slide, which has a factory-machined mounting platform for common red dot footprints. **Q: Where can I buy the Glock G40?** A: Compare current vendor offers on this page. ## What Reviewers Say *Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.* > Imagine that a Glock being reliable except if it's going to ever malfunction it'll do it today. > > — [hickok45](https://www.youtube.com/watch?v=lwGrpePCYeI&t=111s) > Interesting gun is probably not a good Pocket Gun For You concealed carry or anything but it's it's cool. > > — [hickok45](https://www.youtube.com/watch?v=lwGrpePCYeI&t=946s) > Slide it does jump around a little bit I mean when you try to Rapid Fire it is a 10 mm but very controllable. > > — [hickok45](https://www.youtube.com/watch?v=lwGrpePCYeI&t=1061s) > People call it short and weak and all that kind of thing you know 40 45 9 10 mm they're all just handgun rounds they'll generally get the job done. > > — [hickok45](https://www.youtube.com/watch?v=lwGrpePCYeI&t=879s) ## What Customers Say *AI-generated insights from customer reviews* The G40 Gen4 MOS attracts users who specifically want a long-barreled 10mm platform. The combination of caliber and barrel length is the primary reason people choose it. Accuracy with optics is the top positive. The 6.02-inch barrel and MOS mounting make it well-suited for precision shooting and hunting scenarios where longer shots are possible. Users who mount a red dot report improved performance in both speed and consistency. The 10mm caliber gets strong praise for versatility. Hunters value the stopping power against larger game; defensive users appreciate the ballistics while acknowledging that recoil is more noticeable than 9mm or .40 S&W. That said, most users describe the recoil as manageable given the gun's size and weight. Ergonomics are generally positive. The textured grip and backstrap options work well for larger hands, and the 15+1 capacity is a practical advantage. Reliability feedback follows the standard Glock pattern. Owners report dependable function across varied ammunition. Size and weight are the consistent trade-offs. At approximately 2.8 lbs the G40 is not a concealable pistol, and the discussions around it almost always start with an understanding that this is a range, hunting, or open-carry platform rather than a daily carry gun. Aftermarket customization is straightforward given the depth of the Glock ecosystem. ## Pricing **3 offers available** | Vendor | Price | |--------|-------| | Gunbuyer Com | $700.00 | | Guns Com | $1999.99 | | Guns Com | $2999.99 | ## Reviews **Average Rating:** 5.0/5 (1 reviews) > **jess_308** (5/5): The large frame and six-inch barrel manage the 10mm chambering remarkably well without making the pistol feel excessively heavy. I also like the trigger's short, crisp release. This model deserves mor... ## Similar Products - [Glock 40 Gen4 MOS 10mm - Precision Optic Ready Pistol](https://gunsnation.com/p/glock-40-gen4-mos-10mm-precision-optic-ready-pistol/UCDSUKghE) - [Glock G40 Gen4 MOS 10mm Precision Pistol - 6" Barrel, 15+1 Rounds](https://gunsnation.com/p/glock-g40-gen4-mos-10mm-precision-pistol-6-barrel-15-1-rounds/UCDSUKtSc) - [Glock G29SF Gen 3: 10mm Subcompact Powerhouse - Reliable Concealed Carry](https://gunsnation.com/p/glock-g29sf-gen-3-10mm-subcompact-powerhouse-reliable-concealed-carry/UCDSUNUpP) - [Glock 20 Gen 4: Versatile 10mm Striker Pistol, 15-Round Capacity](https://gunsnation.com/p/glock-20-gen-4-versatile-10mm-striker-pistol-15-round-capacity/UCDSUO2eQ) - [Glock PowerShot G20 Gen 4: 10mm Semi-Auto with Safe Action System](https://gunsnation.com/p/glock-powershot-g20-gen-4-10mm-semi-auto-with-safe-action-system/UCDSUKgDH) - [Glock G41 Gen 4 MOS .45 ACP Pistol - Optics-Ready Precision Powerhouse](https://gunsnation.com/p/glock-g41-gen-4-mos-45-acp-pistol-optics-ready-precision-powerhouse/UCDSUKgiR) --- *Data from [GunsNation](https://gunsnation.com)*