The Lionheart Industries LH9N is a full-size, semi-automatic 9mm pistol built to combine military-grade reliability with modern American refinements.
It features a forged 4150 steel slide and barrel, a 7075-T6 aluminum frame, and an innovative Double Action Plus+ (DA+) trigger system—a unique hybrid between double- and single-action operation. Weighing about 25.9 ounces and measuring 7.5 inches long, the LH9N offers the durability of a duty gun with the shootability of a competition pistol.
With Novak sights, ambidextrous safety levers, and compatibility with S&W 59/69-series magazines, this pistol reflects a blend of Korean military lineage (Daewoo K5) and American craftsmanship.
What is the Lionheart Industries LH9N and why is it unique?
The Lionheart Industries LH9N is more than just another 9mm—it’s a refined evolution of the Daewoo K5 pistol, the long-serving sidearm of the South Korean military. Lionheart Industries, a U.S.-based company, took that proven military design and reengineered it for the American civilian and law enforcement markets, updating materials, sights, and ergonomics.
At the core of the LH9N’s uniqueness is the Double Action Plus+ (DA+) system. Unlike traditional DA/SA triggers, the DA+ allows the hammer to rest in a semi-cocked position, offering the safety of double action with the short, crisp pull of single action. It’s an innovation that delivers both confidence and speed.
The LH9N was introduced as a premium full-size 9mm for duty, defense, and range use, combining combat heritage, modern precision machining, and American ergonomics.
What are the specifications of the Lionheart Industries LH9N?
Core Technical Data
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Caliber: 9×19mm Parabellum (9mm Luger)
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Action: Double Action Plus+ (DA+)
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Barrel Length: 4.1 inches (104 mm)
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Overall Length: 7.5 inches (190.5 mm)
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Width: 1.3 inches (33 mm)
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Weight: 25.9 ounces (734 g)
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Frame Material: Forged 7075-T6 aluminum
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Slide & Barrel: Forged 4150 steel with Cerakote finish
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Finish Options: Graphite Black, Patriot Brown
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Sights: Genuine Novak fixed sights (Tritium and fiber optic options)
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Safety: Ambidextrous manual safety
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Magazine Capacity: 13+1 (flush), 15+1 (extended)
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Compatibility: Accepts S&W 59/69-series magazines
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Manufacturer: Lionheart Industries, USA
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Production: 2016–2021
Its combination of forged metals and refined engineering makes it a durable, reliable handgun that stands apart from the polymer-heavy competition.
How is the design and build quality of the Lionheart Industries LH9N?
Frame, Slide, and Components
The LH9N is built using all-forged materials—a rarity in its class. The 7075-T6 aluminum frame provides rigidity without excessive weight, while the 4150 steel slide ensures a tight lockup and long-term durability. The Cerakote finish protects against corrosion and wear.
Ergonomics and Grip Design
The polymer grip panels are textured for control but remain smooth enough for daily carry. The grip angle resembles that of a Browning Hi-Power, promoting a natural point of aim. Shooters with medium to large hands find it particularly comfortable.
The LH9N balances beautifully, thanks to its low bore axis and well-distributed weight, leading to excellent controllability during rapid fire.
Controls and Sights
Ambidextrous safety levers, a reversible magazine release, and an easily accessible slide stop make the LH9N friendly for both right- and left-handed shooters. Genuine Novak sights are standard, with options for tritium night sights or fiber optics for precision under any light conditions.
The pistol lacks a rail or optics cut, emphasizing a clean, classic defensive design over tactical accessories.
What variants of the Lionheart Industries LH9N were produced?
The LH9N family saw several iterations before production ended:
LH9
The original model with similar mechanics but more traditional sighting and cosmetic details.
LH9N
The Novak-sight variant offering upgraded factory sights and Cerakote finishes.
LH9N MkII
Refined version with improved machining tolerances and upgraded Cerakote options.
LH9CN (Compact)
A smaller, shorter variant optimized for concealed carry, maintaining full DA+ function.
Each variant retained the same DA+ system and alloy-steel construction but differed in size and sight options.
Comparable Pistols
Shooters often compare the LH9N to the Beretta 92FS, CZ 75B, and Sig P226—all steel or alloy-framed 9mms with military pedigrees. The LH9N, however, stands apart with its hybrid trigger system and lighter weight.
How does the Lionheart LH9N perform on the range?
Accuracy
The LH9N’s precision-forged barrel and tight slide-to-frame fit deliver accuracy beyond expectations for a duty pistol. At 15 yards, most shooters achieve 1.5–2-inch groups, while at 25 yards, groups expand to around 3 inches—solid for its class.
The Novak sights and low bore axis make quick sight alignment easy, contributing to faster follow-up shots.
Recoil and Control
The offset barrel and dual recoil spring system help mitigate muzzle rise, making recoil smooth and linear. Shooters describe it as “softer than a Glock 19” with a flatter shooting impulse.
Reliability
Across hundreds of rounds, the LH9N runs reliably once broken in. Early users noted a short break-in period (~200 rounds) for optimal spring tension. Afterward, reports of malfunctions are rare.
Field tests from Recoil Web and Guns.com recorded zero failures across 300–400 mixed 9mm rounds, including steel-cased ammo.
Trigger Feel
The DA+ trigger deserves special mention:
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Double Action: Smooth, consistent pull around 7–8 lbs.
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DA+ Mode: Pre-cocked hammer shortens pull to 4–5 lbs.
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Single Action: Crisp break with minimal overtravel.
This flexibility allows users to carry safely in DA+ mode yet shoot with single-action precision.
What ammunition works best in the LH9N?
The LH9N handles a wide variety of ammunition but performs best with standard-pressure and NATO-spec loads due to its tight tolerances and robust recoil system.
Recommended Loads
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Defensive:
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Speer Gold Dot 124gr JHP
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Federal HST 124gr or 147gr JHP
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Hornady Critical Duty 135gr FlexLock
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Training:
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Blazer Brass 115gr FMJ
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Fiocchi 124gr FMJ
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Winchester NATO 124gr FMJ
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+P ammunition is safe to use but unnecessary; the pistol’s design favors consistency and control over raw power.
Users report that the LH9N cycles cleanly and consistently, even with cheaper ammo once fully broken in.
Is the Lionheart LH9N suitable for different use cases?
Concealed and Everyday Carry
Though full-sized, the LH9N’s rounded edges and lightweight alloy frame make it surprisingly comfortable for IWB carry. The DA+ system enhances safety for daily carry without the need for external safeties or decockers.
Home Defense
As a home-defense pistol, the LH9N excels with its capacity, accuracy, and reliability. The crisp trigger and night-sight options make it ideal for low-light defensive encounters.
Range and Training Use
The pistol’s accuracy and smooth recoil make it a joy for range sessions. Its crisp reset and balance allow high-speed target transitions.
Competition and Duty Use
While not optimized for competition, its trigger and sight system make it capable in IDPA or USPSA Production Division. For law enforcement backup or off-duty carry, it offers both precision and peace of mind.
What are the best holsters for the Lionheart Industries LH9N?
Every Lionheart Industries LH9N holster should balance retention, draw speed, and comfort. These options suit daily carry, training, or tactical applications, all built from durable Boltaron polymer for consistent performance.
Cloak Tuck 3.5 IWB Holster
Ideal for deep concealment with adjustable cant and ride height, offering maximum comfort for long carry hours.
Belt Holster
Provides solid retention and fast access, excellent for open carry or range sessions.
What are the pros and cons of the Lionheart Industries LH9N?
Pros
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Innovative DA+ trigger system for safety and control
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Forged steel and aluminum construction for durability
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Excellent accuracy and recoil control
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Genuine Novak sights with optional night sight upgrade
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Ambidextrous safety and good left-hand ergonomics
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Uses widely available S&W magazines
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Smooth operation after break-in
Cons
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Limited aftermarket and accessory support
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No optics cut or accessory rail
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Slightly niche trigger system takes training to master
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Discontinued, making new parts and support harder to find
What’s the final verdict on the Lionheart Industries LH9N?
The Lionheart LH9N is one of the most underrated pistols of the last decade. It bridges the gap between classic alloy-framed service pistols and modern striker-fired carry guns, offering unmatched versatility with its Double Action Plus+ trigger. Its fit, finish, and reliability make it a worthy addition to any enthusiast’s collection, and for those who understand its mechanics, it’s a practical, combat-proven firearm that shoots as good as it looks.
While its limited aftermarket and discontinuation may deter some buyers, the LH9N’s quality craftsmanship and performance easily rival bigger-name competitors like the Beretta 92, CZ 75, or Sig P226.
In short, the Lionheart Industries LH9N remains a refined, durable, and accurate full-size pistol that deserves recognition as a modern classic in 9mm design.