About IWI MASADA SLIM MOS 9mm:
The Masada Slim is the continuation of the Masada line of pistols. Developed with a thin profile and compact design, it allows for ease of concealed carry while providing substantial magazine capacity.
The Masada Slim is a compact, polymer striker-fired pistol. Like the full-size Masada, this pistol has a modular, serialized, high-grade steel trigger mechanism housing that can easily be removed for cleaning and maintenance. Currently offered in 9mm caliber, the Masada Slim comes with 2-13 rd magazines. It weighs 1.27 lbs without the magazine and 1.4 lbs with the magazine inserted. The barrel length is 3.4 inches.
The Masada Slim comes with a white front dot sight and a blacked-out rear sight. Sight cuts are the same on the Masada Slim as on the full-size Masada, while the slide utilizes the RMS Shield optics cut for direct optic mounting options. This footprint will also allow the user to run the Holosun EPS Carry, 507K `X2, Sig Romeo Zero, etc.
The Masada slim has a flat trigger with a clean and crisp break and a positive reset with a built-in trigger safety which prevents the pistol from firing unless the trigger is pulled.
Overall, the Masada Slim stays true to the long history of IWI Firearms and is built to withstand the elements of time while performing when it matters the most.
Key Features
- Durable High-Strength Polymer Construction – Built from ultra-strong, high-glass polymer to withstand extreme operational demands.
- Quick & Secure Installation – Attaches instantly with no modifications required
- Ambidextrous Adaptability – Optimized for shooters of all skill levels, enabling seamless movement and controlled engagement in unpredictable scenarios
- Ergonomic Design – Engineered for optimal hand and head positioning, delivering comfort and a natural shooting stance
- Enhanced Stability – Reinforces grip control for rapid target acquisition and high-speed defensive action
- Superior Recoil Management – Absorbs and redirects recoil impact, ensuring faster follow-up shots and improved accuracy
- Pic rail optic mount – optic ready mount that enable user to mount red dots or magnifiers providing superior target acquisitio
Technical Specifications:
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Model Number(s)
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M9SLIM13
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Color(s)
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Black
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Caliber
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9mm Parabellum
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Action
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Semi-Auto
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Operating System
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Striker Fired
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Magazine Type
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IWI, Steel
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Magazine Capacity
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13 Round, 10 Round
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Barrel Material
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Button Rifled
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Barrel Length
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3.4″
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Weight
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20.3 oz (575g) without magazine, 23 oz (692g) with magazine |
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Rifling
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1:10 RH
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Sights
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Suppressor Height Sights, also available with Fixed 3 dot Mepro Hyper Bright Orange Ring Night Sights
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About IWI – Israel Weapon Industries
Israel Weapon Industries (IWI) is a world-renowned small arms manufacturer, known for designing and producing innovative, battle-proven firearms used by military and law enforcement agencies across the globe. With decades of experience and a tradition rooted in the Israeli defense industry, IWI has become synonymous with reliability, accuracy, and cutting-edge technology.
From iconic platforms such as the UZI and Tavor X95 to modern solutions like the Masada pistol, IWI weapons are engineered to perform in the most demanding environments. Every firearm is developed with direct input from military experts, ensuring maximum ergonomics, safety, and durability for both professional and civilian use.


















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