The IWI Masada is a striker-fired 9mm pistol with a 4.1-inch polygonal-rifled barrel, 17+1 capacity, and a polymer frame with a serrated steel slide. It weighs 1.43 lbs. The slide comes optic-ready with four adapter plates for popular red dot systems including RMR and Delta Point. Three-dot night sights are installed from the factory. 
 

Key Specifications: 

• Brand: IWI US 
• Model Name: MASADA 
• Caliber: 9mm Luger 
• Action: Striker Fire 
• Capacity: 17+1 rounds 
• Barrel Length: 4.1 inches (Polygonal Rifled) 
• Overall Length: 7.40 inches 
• Weight: 1.43 lbs 
• Frame Material: Polymer (Black Finish) 
• Slide Material: Steel (Serrated Black with Optic Cut) 
• Grip Style: Black Interchangeable Backstrap with three sizes (S, M, L) 
• Sights Type: Night Sights for improved visibility 
   

Detailed Features: 

 
The interchangeable backstrap system in three sizes (S, M, L) lets shooters fit the grip to their hand without aftermarket work. The low barrel axis reduces muzzle rise during rapid fire. Fully ambidextrous controls handle the magazine release and slide stop from either side. 
 
The polygonal rifling is standard on IWI barrels and contributes to consistent accuracy. The integrated Picatinny rail accepts lights and lasers. Four optic adapter plates ship with the gun, covering the most common red dot footprints. 
 

Usage Scenarios: 

 
The optic-ready slide and night sights make the Masada ready for defensive use with or without a mounted red dot. The 17+1 capacity suits carry or home defense. The interchangeable backstrap and ambidextrous controls make it adaptable for instructors and shooters who share the gun.

User feedback on the Masada is broadly positive across the key features: ergonomics, optics compatibility, and reliability.

The interchangeable backstrap is called out as a practical feature that makes fit genuinely adjustable rather than cosmetic. The grip texture and overall hand feel get consistent positive marks. Red dot mounting is straightforward with the included adapter plates, and the night sights are praised as a useful factory inclusion.

Accuracy reports are strong out of the box. The trigger pull is described as smooth and consistent by most owners. Reliability over extended use is generally reported as good, with minimal malfunction reports.

The main constructive criticisms involve aftermarket support; the Masada has fewer aftermarket holsters and accessories than Glock or Sig Sauer platforms, which matters to shooters who run a lot of gear. Magazine availability and pricing also draw occasional comments. Some shooters comparing the Masada to Glock or Sig note that the platform difference in trigger feel and controls is a matter of personal preference rather than objective advantage either direction.