What Is Glock Replacing The Glock 43X MOS With

Glock enthusiasts and concealed carry holders are wondering if their trusted 43X MOS will soon be replaced by something newer and better. The compact pistol has been a popular choice for its optics-ready design and reliable performance, but gun owners want to know what's coming next.

Glock has not officially announced a direct replacement for the 43X MOS, and recent reports suggest the company has actually discontinued most of their models while keeping single-stack pistols like the 43X in production. According to recent industry news, Glock has discontinued more than thirty models while maintaining their single-stack lineup including the 43X and 48X models.

While some gun owners are debating whether to buy a 43X MOS now or wait for potential new releases, the current evidence points to Glock focusing on their existing micro-compact designs rather than replacing them. The market trends and company decisions suggest the 43X MOS will remain a key offering in Glock's lineup for the foreseeable future.

Key Takeaways

• Glock has not announced any official replacement for the 43X MOS and recently discontinued many other models while keeping single-stack pistols in production

• The 43X MOS remains popular among concealed carry users due to its optics-ready design and proven reliability

• Industry speculation about new releases continues, but current evidence suggests Glock is maintaining their existing micro-compact lineup rather than replacing it

Current Status of the Glock 43X MOS

The Glock 43X MOS remains active in Glock's current lineup with no signs of discontinuation, while recent updates show continued development in the single-stack pistol market. Market demand continues strong as concealed carry enthusiasts value the MOS system's optics compatibility.

Glock 43X MOS in 2025

The Glock 43X MOS has not been discontinued and remains available for purchase. Supply chain issues sometimes create confusion about availability, but Glock continues to produce this concealed carry pistol.

Recent discussions among Glock enthusiasts show buyers wondering about potential new releases. Gun owners in restricted states like Connecticut find the 10-round capacity particularly appealing.

The pistol features an RMSc footprint machined directly into the slide. This differs from larger Glock MOS models that use adapter plates.

Video reviews in 2025 mention updates to the MOS footprint. These changes appear to address previous concerns with the optics mounting system.

Market Demand and User Trends

The single-stack pistol market shows strong demand for optics-ready options. The Glock 43X MOS competes directly with models like the P365X in the micro-compact segment.

Key market trends include:

• Preference for optics-ready concealed carry guns

• Demand for higher capacity single-stack designs

• Brand loyalty among existing Glock owners

• Focus on comfortable concealability

Many users view the 43X MOS as an all-around option for concealed carry. The Glock Slim Mounting Rail adds accessory compatibility to the compact frame.

The MOS system allows mounting of micro red dot sights without custom slide work. This feature drives continued interest despite competition from other manufacturers.

Rumors and Speculation About Glock 43X MOS Replacement

Recent speculation suggests Glock may discontinue most of its current lineup while keeping the 43, 43X, and 48X models active. However, rumors about Glock model discontinuations often stem from availability fluctuations and online forum discussions rather than official announcements.

Potential Models and Announcements

Reports surfaced claiming Glock might discontinue most pistol models by November 30, 2025, with only the Glock 43, 43X, and 48X remaining. These rumors originated from a GlockStore social media post in October 2025.

The alleged plan involves replacing discontinued models with new "V Models" designed to prevent illegal conversions to fully automatic fire. This represents a significant shift in Glock's manufacturing approach.

No official confirmation has emerged from Glock regarding these claims. The company has not announced any replacement for the G43X MOS specifically. Industry observers remain skeptical about such dramatic changes to Glock's proven product line.

Community Expectations

Gun enthusiasts on forums like GlockTalk express strong interest in potential Glock updates. Many users question whether to purchase current models or wait for new releases.

The community expects any replacement to maintain the G43X MOS's key features:

• Optic compatibility for red dot sights

• Slim profile for concealed carry

• 10-round capacity in standard configuration

• MOS mounting system for accessories

Users frequently discuss compatibility with popular optics like the Holosun EPS Carry. Any replacement would need similar versatility to satisfy existing customers.

Comparison to the Competition

Glock faces increasing pressure from competitors offering enhanced features in the subcompact market. The P365X and similar models provide higher capacity and advanced ergonomics.

A potential G43X MOS replacement would likely address current limitations:

• Magazine capacity improvements

• Enhanced grip texture for better control

• Improved trigger characteristics

• Better accessory compatibility

The replacement must compete with modern micro-compacts while maintaining Glock's reputation for reliability. Manufacturers continue pushing boundaries in concealed carry pistol design, forcing established brands to innovate or risk losing market share.

Feature Analysis: What Could Change in a New Model?

Based on current trends and Glock's strategic shift toward V Models, potential upgrades could focus on enhanced optic integration, improved barrel performance, and refined ergonomics. The rumored changes may address both regulatory compliance and shooter demands for better customization options.

Modular Optic System Upgrades

The current 43X MOS features basic optic mounting capabilities, but a replacement model could incorporate significant improvements. Advanced MOS plates might offer tool-free optic swapping and better co-witness alignment with iron sights.

Enhanced slide cuts could accommodate a wider range of red dot optics without compromising structural integrity. The new design might feature reinforced mounting points to handle heavier optics during extended use.

Potential MOS Improvements:

• Plate System: Tool-free optic changes

• Compatibility: Broader red dot selection

• Durability: Reinforced mounting hardware

• Alignment: Improved sight co-witness

However, reports suggest initial V Models may ship without MOS cuts, which could delay these enhancements until later production runs.

Slide and Barrel Enhancements

A replacement model would likely retain the proven Glock Marksman Barrel (GMB) technology but with potential refinements. The barrel could feature improved rifling patterns for better accuracy at concealed carry distances.

Slide modifications might focus on reducing weight while maintaining durability. Enhanced slide serrations could provide better grip during manipulation in adverse conditions.

The slide length would probably remain consistent with the current 43X dimensions to maintain holster compatibility. However, internal slide modifications could improve cycling reliability with various ammunition types.

Expected Enhancements:

• Refined GMB rifling for accuracy

• Weight-optimized slide construction

• Improved front and rear serrations

• Enhanced ejection port geometry

Capacity and Magazine Innovations

The single-stack pistol platform limits capacity expansion, but magazine improvements could still occur. Enhanced follower designs might ensure more reliable feeding with hollow point ammunition.

Magazine baseplates could feature improved grip extensions without adding significant bulk. The magazine release might receive ergonomic updates for faster reloads during defensive situations.

Magazine Upgrades:

• Follower: Improved feeding reliability

• Baseplate: Better grip extension design

• Spring: Enhanced tension consistency

• Body: Corrosion-resistant coatings

Capacity will likely remain at 10 rounds to maintain the slim profile that makes the 43X popular for concealed carry applications.

Ergonomics for Concealed Carry

Grip texture improvements could provide better control without increasing snag potential on clothing. The trigger guard might receive slight modifications for enhanced finger placement during rapid fire.

Frame contouring could be refined to reduce printing while maintaining a secure grip. The magazine well might feature subtle beveling to improve reload speed without compromising concealability.

Ergonomic Refinements:

• Optimized grip texture pattern

• Refined trigger guard geometry

• Improved frame contouring

• Enhanced magazine well design

These changes would focus on maintaining the 43X's excellent concealment characteristics while improving shootability and user interface elements that matter most to everyday carriers.

Red Dot Sights and Optics Trends for Glock Micro Compacts

The RMSc footprint has become the standard for micro compact pistols, while enclosed emitter designs like the Holosun EPS Carry are gaining popularity for their weather resistance. These optics can improve shooting accuracy by 25-30% and reduce target acquisition time significantly.

RMSc Footprint Compatibility

The RMSc footprint serves as the primary mounting standard for Glock's micro compact pistols. This mounting system was originally developed by Shield Sights and has become widely adopted across the industry.

Most manufacturers now produce red dot sights compatible with the RMSc footprint. The standardization allows shooters to choose from multiple brands without compatibility concerns.

Key RMSc specifications include:

• Mounting hole spacing: 15.5mm

• Screw size: M3 x 0.5

• Footprint dimensions: Compact rectangular pattern

The Glock 43X MOS comes factory-ready for RMSc optics. However, some models like the Holosun 507K require minor modifications to the rear sight post for proper fitment.

Adapter plates from companies like CHPWS provide additional mounting options. These plates can improve zero retention and provide better recoil distribution across the slide.

Popular Models: Holosun EPS Carry and Others

The Holosun EPS Carry represents the latest trend in enclosed emitter designs. Unlike traditional open emitter sights, enclosed designs protect the LED from debris, rain, and lint.

Top trending models include:

The Holosun 507K remains popular for its multi-reticle system. Users can switch between a 2 MOA dot and 32 MOA circle depending on the situation.

Shake awake technology has become standard across most models. This feature automatically turns the optic on when motion is detected and powers down during periods of inactivity.

Side-loading battery trays eliminate the need to remove the optic for battery changes. This feature maintains zero and reduces maintenance time.

Impact on Accuracy and Speed

Red dot sights significantly improve shooting performance on micro compact pistols. The dot provides a single focal plane, eliminating the need to align front and rear sights.

Studies show red dot equipped pistols can improve accuracy by 25-30% compared to iron sights. The improvement is most pronounced at distances beyond 15 yards.

Target acquisition speed increases dramatically with red dot sights. Shooters can engage targets 0.2-0.3 seconds faster on average.

Key accuracy benefits:

• Single focal plane reduces sight alignment errors

• Larger effective sight radius

• Better performance in low light conditions

• Reduced eye fatigue during extended shooting

The 2 MOA dot size provides the best balance of precision and visibility. Larger dots like 6 MOA work better for close-range defensive shooting but sacrifice precision at distance.

Proper co-witnessing with iron sights provides backup capability. Most micro red dots sit low enough to work with factory height sights without modification.

Practical Considerations: Carry, Accessories, and Upgrades

The G43X requires careful attention to holster selection, ammunition performance, and proven reliability standards. These factors directly impact daily carry effectiveness and long-term ownership satisfaction.

Holster Options and Fit

The G43X's slim profile creates specific holster requirements for concealed carry. Inside-the-waistband holsters work best due to the pistol's compact dimensions.

Quality holsters must balance retention with quick access. The pistol needs secure mounting during daily activities while allowing fast presentation when needed.

Crossbreed's The Reckoning system offers adjustable tension and multiple carry positions. This holster handles inside-the-waistband, appendix, and crossdraw carry styles effectively.

Key holster features:

• Adjustable retention settings

• Premium leather backing

• Multiple mounting positions

• Secure belt attachment

Appendix carry works well with specialized holsters designed for this position. The Wilson Combat Precision Ultra Appendix uses negative angles to pull the grip closer to the body.

Women often prefer purse carry options. The Purse Defender provides angled mounting plates with model-specific retention designed for off-body carry situations.

Ammunition Compatibility

The G43X functions reliably with standard 9mm ammunition across different grain weights. Most shooters prefer 115-grain or 124-grain loads for defensive use.

Fiocchi's ammunition options include both practice and defensive loads. Their 115-grain Extrema offers consistent expansion with good penetration depth.

Recommended ammunition types:

• Practice: 115-grain FMJ loads

• Defense: 115-grain or 124-grain hollow points

• Training: Standard pressure loads

Higher pressure +P ammunition works in the G43X but creates more recoil. The compact size makes +P loads harder to control for most shooters.

Factory magazines hold 10 rounds reliably. Shield Arms magazines increase capacity to 15 rounds with proper installation of their steel magazine catch.

Reliability in Real-World Scenarios

The G43X maintains Glock's reputation for mechanical reliability in various conditions. The pistol functions through thousands of rounds with minimal maintenance requirements.

Field testing shows consistent performance with different ammunition weights. The polygonal rifling handles both jacketed and plated bullets without accuracy loss.

Reliability factors:

• Consistent ejection patterns

• Reliable feeding with various bullet shapes

• Function in temperature extremes

• Low maintenance requirements

Extended testing with Shield Arms magazines shows over 600 rounds fired without malfunctions. The higher capacity magazines require firm seating when fully loaded.

Environmental conditions rarely affect function. The pistol works in wet, dusty, and cold conditions that disable other compact pistols.

Regular cleaning every 500-1000 rounds maintains peak performance. Simple field stripping allows quick maintenance without special tools or training.

Frequently Asked Questions

Glock has not officially announced a direct replacement for the Glock 43X MOS as of November 2025. The company continues to produce and support the 43X MOS alongside other models in their lineup.

What new model has Glock introduced to succeed the Glock 43X MOS?

Glock has not introduced a specific successor to replace the Glock 43X MOS. The company still manufactures and sells the 43X MOS as part of their current product line.

The Glock 43X MOS remains popular for concealed carry applications. Glock typically keeps successful models in production for many years rather than replacing them quickly.

Is there an upgraded version of the Glock 43X MOS currently available?

No upgraded version of the Glock 43X MOS exists beyond the current model. The 43X MOS already includes Glock's latest features for this size category.

The pistol features a modular optic system with RMSc footprint machined into the slide. It also includes a Picatinny rail for accessories.

What features differentiate the successor of the Glock 43X MOS from its predecessor?

Since Glock has not released a successor to the 43X MOS, no feature differences exist between models. The current 43X MOS represents the most advanced version in this size class.

The existing model includes traditional black nDLC finish and red dot ready optic mounting. These features remain current technology for subcompact pistols.

How does Glock's latest release compare to the Glock 43X MOS in terms of size and capacity?

Glock has not released a replacement model to compare with the 43X MOS. The 43X MOS maintains its original specifications with no size or capacity changes.

The pistol measures 6.50 inches in overall length with a 10-round magazine capacity. Its dimensions remain unchanged since its initial release.

Can the new model replacing the Glock 43X MOS support the same accessories and modifications?

No replacement model exists for the Glock 43X MOS currently. The existing 43X MOS continues to support various accessories and modifications.

Users can add red dot sights, lights, and lasers to the current model. The Picatinny rail accommodates compatible accessories.

Has Glock launched a successor for the Glock 43X MOS that supports different optic configurations?

Glock has not launched a successor to the 43X MOS with different optic configurations. The current model uses the RMSc footprint for red dot sights.

This footprint works with many popular micro red dot sights. The design provides a low profile for concealed carry applications.