Glock 34 Gen 4 For Sale – Complete Buyer’s Guide, Review, Price & FAQs

The Glock 34 Gen 4 is one of the most respected competition and tactical pistols in the Glock lineup. Chambered in 9mm, this long-slide handgun is built for speed, precision, and reliability. With its extended barrel, enhanced ergonomics, and excellent recoil control, the Glock 34 Gen 4 remains a top choice for competitive shooters, law enforcement professionals, and firearm enthusiasts.

If you are searching for a glock 34 gen 4 for sale, this complete guide covers everything you need to know about features, performance, pricing, slides, MOS options, reviews, and FAQs.

Whether you are considering the standard model or the glock 34 gen 4 mos, this article will help you understand why the Glock 34 platform continues to dominate the 9mm handgun market.

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Glock 34 Gen4 9mm Overview 

The Glock 34 Gen4 9mm is a full-size striker-fired pistol designed for accuracy and fast shooting performance.

Compared to the Glock 17, the Glock 34 features:

• A longer barrel
• Extended slide
• Increased sight radius
• Reduced muzzle rise
• Competition-oriented trigger setup

The Gen 4 version also introduced ergonomic upgrades and improved recoil management.

Key Specifications

Feature	Details
Model	Glock 34 Gen 4
Caliber	9mm
Capacity	17+1
Barrel Length	5.31 Inches
Overall Length	8.82 Inches
Weight (Unloaded)	Approx. 26 oz
Action	Striker-Fired
Frame Material	Polymer
Sights	Adjustable Rear Sight

The 34 glock gen 4 is commonly used for:

• Competition shooting
• Home defense
• Tactical applications
• Range training

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Why Buy the Glock 34 Gen 4?

Many shooters continue searching for a glock 34 gen 4 for sale because the pistol offers exceptional performance and versatility.

Outstanding Accuracy

The longer barrel and extended sight radius improve shooting precision.

Reduced Recoil

The longer slide helps minimize muzzle rise for faster follow-up shots.

Proven Glock Reliability

Like all Glock pistols, the Glock 34 Gen 4 is trusted for dependable operation under harsh conditions.

Excellent Aftermarket Support

The Glock 34 platform supports countless upgrades including:

• Slides
• Triggers
• Optics
• Magazines
• Barrels
• Holsters

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Glock 34 Gen 4 Review

A detailed glock 34 gen 4 review explains why this handgun remains one of the best full-size 9mm pistols available.

Accuracy Performance

The Glock 34 Gen 4 is exceptionally accurate thanks to its:

• Extended barrel
• Long sight radius
• Stable recoil impulse

Shooters often achieve tight groupings at both short and extended distances.

Trigger Quality

The Glock 34 comes with a lighter factory connector compared to standard Glock models.

This creates:

• Smoother trigger pull
• Faster shooting
• Better competition performance

Recoil Management

The Gen 4 dual recoil spring assembly improves recoil control and shooting comfort.

Combined with the longer slide, this helps shooters maintain rapid-fire accuracy.

Ergonomics

The Gen 4 frame includes:

• Interchangeable backstraps
• Improved grip texture
• Enlarged reversible magazine release

These enhancements improve comfort for a wide range of hand sizes.

Reliability

The Glock 34 Gen 4 maintains Glock’s reputation for durability and reliability even after extensive use.

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Glock 34 Gen 4 Price Guide

The glock 34 gen 4 price depends on condition, included accessories, and market demand.

Average Pricing

Condition	Estimated Price
New	$650 – $850
Used	$500 – $700
Competition Upgraded Models	$900 – $1,400+

Prices may vary depending on:

• MOS compatibility
• Red dot optics
• Trigger upgrades
• Slide modifications
• Magazine packages

Because of its popularity in competitive shooting, the Glock 34 Gen 4 often retains strong resale value.

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Glock 34 Gen 4 MOS

The glock 34 gen 4 mos is one of the most desirable variants of the Glock 34 lineup.

What Does MOS Mean?

MOS stands for Modular Optic System.

The MOS version includes a factory-machined slide cut that allows users to mount red dot optics using interchangeable adapter plates.

Benefits of the MOS System

The MOS system provides:

• Easy optic installation
• Flexibility between optic brands
• Professional factory fitment
• Improved resale value

Popular Compatible Optics

The Glock 34 Gen 4 MOS supports optics such as:

• Trijicon RMR
• Holosun 507C
• Leupold DeltaPoint Pro
• Vortex Venom

Why Shooters Choose the MOS Version

The MOS model is especially popular among:

• Competition shooters
• Tactical users
• Home defense owners
• Red dot enthusiasts

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Glock 34 Gen 4 Slide Features

The glock 34 gen 4 slide is one of the pistol’s defining features.

Extended Slide Design

The longer slide improves:

• Sight radius
• Balance
• Recoil control

Factory Top Cutout

The Glock 34 slide includes a cutout on top to reduce weight and improve cycling speed.

Durable Finish

The slide coating resists corrosion and wear during heavy use.

Slide Customization Options

Many shooters customize their Glock 34 slides with:

• Optic cuts
• Porting
• Window cuts
• Cerakote finishes
• Suppressor-height sights

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Glock 34 Gen 4 for Competition Shooting

The Glock 34 Gen 4 was designed with competition shooting in mind.

USPSA & IPSC Performance

Its long slide and light recoil make it ideal for:

• USPSA
• IPSC
• IDPA

Fast Follow-Up Shots

Reduced muzzle rise allows faster transitions between targets.

Magazine Capacity

The standard 17-round capacity gives competitors an advantage during matches.

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Glock 34 Gen 4 for Home Defense

The Glock 34 Gen 4 also performs exceptionally well for home defense.

Excellent Accuracy

The long barrel and stable recoil improve precision under stress.

Accessory Rail

The integrated rail allows attachment of:

• Weapon lights
• Laser systems

High Capacity

The pistol provides excellent firepower with standard and extended magazines.

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Glock 34 Gen 4 Accessories

There are many popular upgrades and accessories available.

Red Dot Optics

Popular choices include:

• Trijicon SRO
• Holosun 507C
• Aimpoint ACRO

Weapon Lights

Common tactical lights include:

• Streamlight TLR-1
• SureFire X300

Trigger Upgrades

Competition shooters often install aftermarket triggers for improved performance.

Grip Enhancements

Popular options include:

• Talon grips
• Grip tape
• Stippling

Extended Controls

Shooters frequently upgrade:

• Slide release
• Magazine release
• Magwells

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Glock 34 Gen 4 Holster Options

Choosing the right holster improves comfort and accessibility.

Competition Holsters

Designed for:

• Fast draw speed
• Adjustable retention
• Match shooting

OWB Holsters

Outside-the-waistband holsters are ideal for:

• Competition
• Tactical use
• Range shooting

Duty Holsters

Retention holsters are popular among professionals.

Popular Holster Brands

• Safariland
• Blade-Tech
• Comp-Tac
• Blackhawk

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Glock 34 Gen 4 Extended Magazine Options

Extended magazines remain popular for both competition and range use.

Common Capacities

Capacity	Purpose
17 Rounds	Standard
19 Rounds	Competition
24 Rounds	Extended
33 Rounds	Training & Recreational Use

Trusted Magazine Brands

• Glock OEM
• Magpul
• ETS

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Glock 34 Gen 4 Problems

Although highly respected, some users mention occasional concerns.

Large Overall Size

The long slide makes concealed carry difficult for some users.

Factory Sights

Many shooters replace factory polymer sights with steel or fiber optic options.

MOS Plate Maintenance

MOS users should periodically inspect optic mounting screws.

Competition Wear

Heavy competition use may eventually wear recoil springs faster.

Overall, the Glock 34 Gen 4 remains highly reliable when properly maintained.

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Glock 34 Gen 4 vs Glock 17 Gen 4

Feature	Glock 34 Gen 4	Glock 17 Gen 4
Barrel Length	5.31″	4.49″
Sight Radius	Longer	Standard
Recoil Control	Better	Good
Competition Use	Excellent	Good
Concealed Carry	Less Practical	Easier

The Glock 34 Gen 4 is optimized for accuracy and competition shooting.

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Ammunition Recommendations

Using quality ammunition helps maximize reliability and accuracy.

Defensive Ammunition

Popular defensive loads include:

• Federal HST
• Speer Gold Dot
• Hornady Critical Duty

Competition Ammunition

Many competitors prefer lighter 9mm loads for softer recoil.

Practice Ammunition

Full metal jacket rounds remain the most common choice for range training.

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Maintenance Tips

Proper maintenance ensures long-term reliability.

Clean Regularly

Clean the pistol after range sessions.

Lubricate Correctly

Apply light lubrication to Glock-recommended areas.

Inspect Recoil Springs

Competition shooters should replace recoil springs periodically.

Check Optic Screws

MOS owners should inspect mounting screws regularly.

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Buying a Glock 34 Gen 4 Online

When searching for a glock 34 gen 4 for sale, buyers should compare multiple retailers carefully.

Verify Dealer Reputation

Only purchase from trusted firearm dealers.

Compare Included Accessories

Some packages may include:

• Extra magazines
• Red dot optics
• Holsters
• Trigger upgrades

Understand Local Laws

Always comply with local firearm laws and transfer requirements.

Compare Pricing

Research several retailers before purchasing.

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Is the Glock 34 Gen 4 Worth Buying?

The Glock 34 Gen 4 remains one of the best full-size 9mm pistols ever produced.

Its major strengths include:

• Exceptional accuracy
• Excellent recoil control
• Proven reliability
• Massive aftermarket support
• Competition-ready performance

Whether you choose the standard version or the glock 34 gen 4 mos, the platform remains one of the strongest options in the modern handgun market.

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FAQs About Glock 34 Gen 4

What caliber is the Glock 34 Gen 4?

The Glock 34 Gen 4 is chambered in 9mm.

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What is the average Glock 34 Gen 4 price?

Most Glock 34 Gen 4 pistols sell between $650 and $850 depending on condition and included accessories.

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What is the Glock 34 Gen 4 MOS?

The MOS version includes a factory optic-ready slide for mounting red dot sights.

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Is the Glock 34 Gen 4 good for competition shooting?

Yes. It is one of the most popular competition pistols worldwide.

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What are common Glock 34 Gen 4 problems?

Common concerns include large size for concealed carry and factory sight upgrades.

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Can the Glock 34 Gen 4 be customized?

Absolutely. There is extensive aftermarket support for slides, triggers, optics, barrels, and accessories.

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Is the Glock 34 Gen 4 reliable?

Yes. Glock pistols are known for exceptional reliability and durability.

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Is the Glock 34 Gen 4 good for home defense?

Yes. Its accuracy, magazine capacity, and accessory compatibility make it excellent for home defense.

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What optics fit the Glock 34 Gen 4 MOS?

Popular optics include the Trijicon RMR, Holosun 507C, and Leupold DeltaPoint Pro.

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Final Thoughts

The Glock 34 Gen4 9mm continues to stand out as one of the best competition-ready and tactical pistols available today. Combining Glock reliability with outstanding accuracy, reduced recoil, and extensive customization options, the platform remains a favorite among competitive shooters and firearm enthusiasts worldwide.

Whether you are researching the glock 34 gen 4 review, comparing the glock 34 gen 4 price, exploring the glock 34 gen 4 mos, upgrading your glock 34 gen 4 slide, or searching for a glock 34 gen 4 for sale, this pistol remains one of the best long-slide 9mm handguns on the market.

For shooters seeking precision, reliability, and competition-ready performance, the Glock 34 Gen 4 is absolutely worth considering.