The SAR ST9 is a double-action semi-automatic pistol chambered in 9mm Luger with a 4.5-inch barrel, 17-round capacity, and a polymer frame over a steel slide. The adjustable 3-dot sights and ambidextrous safety make it usable for both left- and right-handed shooters without swapping parts. 
 

Key Specifications 

• UPC: 858763007145 
• Caliber: 9MM LUGER (9X19 PARA) 
• Action: DOUBLE ACTION 
• Capacity: 17 ROUNDS 
• Barrel Length: 4.5 INCHES 
• Weight: 1.85 LBS. 
• Finish: BLACK 
• Frame Material: POLYMER 
• Slide Material: STEEL 
   

Detailed Features 

The double-action mechanism means the first trigger pull is longer and heavier than a striker-fired design, with subsequent shots lighter once the hammer is cocked by the slide's rearward travel. The 3-dot adjustable sights let shooters tune point-of-impact without sourcing aftermarket components. The interchangeable backstrap grip accommodates different hand sizes. 
 
At 1.85 lbs, the ST9 is on the lighter side for a full-size 9mm. The 4.5-inch barrel provides a longer sight radius and velocity advantage over compact designs. Seventeen rounds gives meaningful capacity for both range use and defensive applications.

The SAR ST9 is discussed primarily in the context of value. Buyers consistently note it competes well on price against more established 9mm platforms while delivering reliable feeding and ejection through standard break-in. Build quality is described as solid -- the steel slide over polymer frame feels appropriately substantial, and most users find it holds up to regular range use without finish issues.

Ergonomics get positive marks. The grip profile and texture are comfortable for extended sessions, and the ambidextrous safety is appreciated. The double-action trigger is the most debated feature -- users who prefer the long DA first pull for safety reasons appreciate it, while those coming from striker-fired guns find the heavier initial pull needs more practice to shoot accurately.

Aftermarket availability is the main limitation raised in discussions. Holsters, triggers, and accessories for the SAR platform are thinner on the ground compared to Glock or Sig Sauer equivalents. Ammunition sensitivity during break-in is occasionally mentioned, with most users recommending running 200-300 rounds of quality ammunition before trusting the pistol for defensive carry.