Glock Model 34 Gen 3 - 9mm - Used; Great Condition - Upgraded KKM Heavy Barrel - 2 Mags

Description:
Glock Model 34 Gen 3 - 9mm - Used; Great Condition - Upgraded KKM Heavy Barrel - 2 Mags
Glock 34 Gen 3 – Competition-Ready Long Slide – Upgraded KKM Precision Heavy Barrel
For sale is a Glock Model 34 Gen 3 striker-fired semi-automatic pistol, chambered in 9mm Luger. This pistol is in great used condition and represents the long-slide competition variant of Glock's legendary platform. It has been upgraded with a KKM Precision Heavy Barrel – a premium aftermarket barrel known for improved accuracy and fully supported chamber. This package includes two magazines.
The Glock 34 features a longer slide and barrel assembly (5.31-inch barrel) offering a longer sight radius and altered recoil characteristics compared to standard full-size models. This is a Gen 3 configuration, incorporating an accessory rail on the dust cover, finger grooves along the front strap, thumb rests on the frame sides, and the revised Gen 3 grip texture pattern. The factory barrel has been replaced with a KKM Precision Heavy Barrel, offering a fully supported chamber (ideal for reloaders) and match-grade accuracy. The pistol features white dot front sight and adjustable U-notch rear sight.
Specifications

• Manufacturer: Glock Ges.m.b.H.
• Model: 34 Gen 3
• Caliber: 9mm Luger (9x19mm Parabellum)
• Action: Recoil Operated Semi-Automatic, Striker-Fired ("Safe Action")
• Barrel: KKM Precision Heavy Barrel (5.31" – Aftermarket Upgrade)
• Overall Length: 8.82"
• Width: 1.3"
• Height: 5.47"
• Magazine Capacity: 17+1 (Two 17-Round Magazines Included)
• Frame: Black Polymer (Gen 3 – Finger Grooves, Thumb Rests, Accessory Rail)
• Sights: White Dot Front, Adjustable U-Notch Rear
• Safety: Glock "Safe Action" Trigger Safety (Passive Internal Safeties)
• Condition: Used; Great
• Includes: Two (2) 17-Round Magazines

What's Included

• Glock 34 Gen 3 Pistol
• KKM Precision Heavy Barrel (Installed – Factory Barrel Not Included)
• Two (2) 17-Round Magazines
• Factory Sights (White Dot Front, Adjustable U-Notch Rear)
• Note: No original barrel, no case, no original box.

KKM Precision Heavy Barrel Upgrade – Why It Matters

• Fully Supported Chamber: Unlike factory Glock barrels, KKM barrels feature a fully supported chamber – ideal for reloaders and shooting higher-pressure loads safely.
• Match-Grade Accuracy: Precision machined from 416R stainless steel for superior accuracy and consistency.
• Traditional Rifling: Can safely fire lead bullets (unlike Glock's factory polygonal rifling).
• Durable Construction: Heat-treated and hardened for extended service life.
• Drop-In Fit: Designed as a direct replacement for the factory Glock 34 barrel – no fitting required.

Glock 34 Gen 3 Features – Competition Pedigree

• Long-Slide Design: The extended 5.31" barrel and slide provide a longer sight radius, reduced muzzle flip, and altered recoil characteristics – ideal for competition.
• Gen 3 Ergonomics: Finger grooves, thumb rests, and accessory rail – the most popular Glock generation for aftermarket support.
• Adjustable Sights: Factory adjustable rear sight allows for fine-tuning zero with different ammunition types.
• Competition Proven: The Glock 34 is one of the most popular pistols in USPSA Production division and other practical shooting sports.
• Parts Compatibility: Shares broad compatibility with Gen 3 Glock 17 parts (frame architecture, recoil springs, most internals), enabling extensive interchangeability and aftermarket support.
• Accessory Rail: Milled Picatinny-style rail for mounting lights or lasers.

Glock Safe Action System – Simple & Reliable

• Three Automatic Safeties: Trigger safety, firing pin safety, and drop safety – all disengage sequentially as the trigger is pulled.
• Consistent Trigger Pull: The same trigger pull from first shot to last – no manual safety to manipulate.
• Proven Reliability: Glock pistols are trusted by military, law enforcement, and civilians worldwide for their durability and reliability.

Condition Details

• Overall: Great condition with normal wear from use.
• Mechanical Function: Excellent – Striker-fired action is crisp, slide cycles smoothly with KKM barrel.
• Bore: Clean with sharp rifling – KKM barrel is in excellent condition.
• Frame: Polymer frame shows normal handling marks; finger grooves and thumb rests intact.
• Slide: Factory slide shows normal wear – no significant damage.
• KKM Barrel: Installed and in excellent condition – fully supported chamber, traditional rifling.
• Sights: White dot front and adjustable U-notch rear are clean and functional.
• Magazines: Two 17-round magazines included – both function properly.
• Factory Barrel: Not included – sold with KKM barrel only.

The Glock 34 Advantage – Competition-Ready Out of the Box

• Longer Sight Radius: The 5.31" barrel provides a significantly longer sight radius than the G17 or G19 – more forgiving of sight alignment errors.
• Reduced Muzzle Flip: The longer slide and barrel assembly changes the recoil impulse, keeping the pistol flatter during rapid fire.
• Factory Adjustable Sights: Standard on the G34 – allows shooters to zero for specific loads or preferred point of impact.
• Gen 3 Aftermarket Support: The Gen 3 platform has the largest aftermarket support of any Glock generation – holsters, sights, triggers, and more.
• KKM Upgrade: The KKM heavy barrel adds match-grade accuracy and a fully supported chamber – a significant upgrade over the factory barrel.
• Ideal For: USPSA Production, IDPA, steel challenge, home defense, and range training.

A Note on the KKM Barrel Upgrade
This Glock 34 has been upgraded with a KKM Precision Heavy Barrel. The factory Glock barrel is not included. The KKM barrel offers a fully supported chamber (ideal for reloaded ammunition) and traditional rifling (allows safe use of lead bullets). This is a premium upgrade that adds significant value for competitive shooters and reloaders.
All listings are available for purchase in-store; please place ato ensure this item is pulled from the showroom. See photos for details, and contact us if you have any questions!

Handgun Caliber: 9x19mm Parabellum (9mm Luger, 9x19mm NATO)
Manufacturer: Glock
Model: 34
Serial Number: EGR290 US
Barrel Length: 5

Price: $799.99
Shipping: $35.00
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