The SDS Imports PX-9 Gen 3 is a striker-fired 9mm Luger pistol with a polymer frame, 4.11-inch barrel, and 20-round magazine capacity. The black finish is clean and the polymer frame keeps the weight down. 
 

Key Specifications 

• Brand: SDS Imports 
• Model: PX-9 Gen 3 
• Caliber: 9MM Luger (9X19 Para) 
• Action: Striker 
• Capacity: 20 Rounds 
• Barrel Length: 4.11 inches 
• Finish: Black 
• Frame Material: Polymer 
   

Features 

The interchangeable backstraps let shooters adjust grip fit without aftermarket parts. Fiber optic front sight paired with serrated adjustable rear sights gives quick target acquisition across different lighting. The threaded barrel adds flexibility for those who want to run a suppressor or other muzzle device. At 20 rounds the magazine capacity is a genuine practical advantage over most competitors in this category.

The SDS PX-9 Gen 3 draws a consistent crowd of price-conscious buyers who find it punches above its weight class.

Affordability relative to features is the most common positive. Owners regularly point out that the 20-round capacity, fiber optic sights, and interchangeable backstraps are things you typically pay more for elsewhere. Ergonomics come up favorably too. The grip feels natural for most hand sizes and recoil is manageable. Many buyers position it as a strong entry point for new shooters who want a full-featured pistol without the premium price.

The criticisms are real and worth noting. Reliability concerns appear in a subset of reviews. Feeding issues and occasional misfires with certain ammunition types are reported, though not universally. Weight feels slightly high to some users who want it for everyday carry. A few owners note that certain components feel less solid compared to higher-end striker pistols, which matters to shooters who plan heavy use.