The Walther P99 Final Edition is a DA/SA semi-automatic pistol chambered in 9mm Luger with a 4-inch barrel, 15+1 capacity, and OD Green interchangeable backstraps. The "Final Edition" engraving on the serrated slide marks it as the last production run of the standard P99. 
 

Key Specifications 

• Brand: Walther Arms 
• Model: P99 
• Caliber: 9mm Luger 
• Action Type: Double Action / Single Action (DA/SA) 
• Capacity: 15+1 rounds 
• Barrel Length: 4 inches 
• Overall Length (OAL): 7.10 inches 
• Weight: 24 oz (1.5 lbs) 
• Frame Material: Polymer 
• Slide Material: Steel with Black Cerakote finish 
• Sights: 3-Dot configuration 
• Grip: OD Green interchangeable backstraps 
• Safety: Trigger safety 
   

Features 

The OD Green interchangeable backstraps let the shooter adjust grip size to fit different hand dimensions. The DA/SA mechanism allows a long trigger pull from the decocked position for the first shot, with a shorter pull for subsequent rounds. At 15+1 capacity the P99 holds more than many compact competitors without significantly increasing frame size. The polymer frame and steel slide keep the overall weight at 24 oz. 
 

Usage 

The P99 has a history in law enforcement and competitive shooting contexts. At home it works well for personal protection and range training. The DA/SA action suits shooters who prefer a trigger-feel transition between the first and follow-up shots. As a Final Edition model it carries collector interest alongside its practical capabilities.

Owners of the Walther P99 9mm Final Edition OD Green cover a consistent set of themes.

Ergonomics are the most cited positive. The grip shape is natural for most hand sizes, and the interchangeable backstraps make it fit a wider range of shooters than a fixed-grip design. The DA/SA trigger gets favorable reviews from those who've used it: both modes feel clean, with a smooth double-action pull and a crisp single-action reset. Reliability is widely reported as high across different ammunition.

The OD Green finish draws mixed reactions. Some collectors specifically sought it out as unusual; others would have preferred standard black. Overall it's seen as a distinguishing feature rather than a drawback.

The 15+1 capacity gets appreciation from those who prioritize round count without moving to a larger-frame pistol.

Criticism: the price is the most common complaint, with some owners noting comparable 9mm options cost less. Holster and aftermarket accessory availability is a recurring frustration. The P99 has a smaller ecosystem than Glock or SIG Sauer platforms. Final Edition status also means no future factory parts production beyond existing stock.