The SAR USA K2 is a .45 ACP semi-automatic pistol with a DA/SA action and a 14+1 capacity — high for a .45. The 4.7-inch barrel and 2.5 lb (39.30 oz) weight put it firmly in full-size territory. The alloy forged steel frame and polymer grip finish in black. 
 

Key Specifications 

• Manufacturer: SAR USA 
• Model: K2 
• Caliber: .45 ACP 
• Action Type: Single/Double Action (DA/SA) 
• Capacity: 14+1 rounds 
• Barrel Length: 4.7 inches 
• Weight: 2.5 lbs (39.30 oz) 
• Finish: Black Polymer Grip with Alloyed Forged Steel Frame 
   

Detailed Features 

 
A loaded round indicator lets you confirm chamber status at a glance without racking the slide. The Picatinny rail accepts lights and lasers without an adapter. The two-position frame safety allows cocked-and-locked carry for those who prefer it. These are practical additions rather than just spec sheet items — the indicator and safety together give you clear status and carry options. 
 

Usage Scenarios 

1. Home defense: 14+1 rounds of .45 ACP gives substantial capacity for the caliber. 
2. Competitive shooting: adjustable sights and smooth DA/SA action suit target-focused formats. 
3. Range use: the full-size frame absorbs .45 ACP recoil well for extended sessions.

The SAR K2 .45 ACP gets credit for hitting some specs that are genuinely hard to find at its price point.

The 14+1 capacity in .45 ACP comes up immediately in positive discussions — most .45 platforms don't come close. Ergonomics are praised; the textured grip adapts to different hand sizes and the gun feels controlled during extended firing. Range reliability is generally good, with most owners reporting clean feeding and ejection. The Picatinny rail and loaded chamber indicator are practical features that users appreciate. Value relative to other .45 ACP options in the same price range is a recurring positive.

Weight is the main complaint: at 39.30 oz it's a heavy gun, and concealed carry is unrealistic for most users. The DA/SA trigger gets mixed reviews — some find the transition between double-action first shot and single-action follow-ups natural, others find the system requires more training time than a striker-fired pistol. Holster and aftermarket part availability is more limited than for mainstream brands, which comes up in enough discussions to be worth noting.