The Springfield Armory Hellcat Pro OSP is a striker-fired 9mm compact with a 3.7-inch hammer-forged barrel and 15+1 capacity. The FDE version has a Flat Dark Earth Cerakote slide and matching polymer frame with black controls. The OSP designation means the slide is milled from the factory for Springfield's micro red-dot footprint. 
 

Key Specifications 

• Brand: Springfield Armory 
• Model Name: Hellcat Pro OSP Compact 
• Caliber: 9mm Luger 
• Action: Striker Fire 
• Capacity: 15+1 rounds 
• Barrel Length: 3.7 inches 
• Weight: 21 oz (2.45 lbs) 
• Frame Material: Polymer with Flat Dark Earth finish & Black Controls 
• Slide Finish: Flat Dark Earth Cerakote 
• Sights: Tritium Front & Tactical Rack U-notch Rear 
• Grip Type: Adaptive Textured 
• Included Accessories: Two magazines and a case 
   

Detailed Features 

 
The milled slide accepts micro red-dot sights on Springfield's footprint without an adapter plate, which simplifies the optic mounting process. The Tritium front sight paired with the Tactical Rack U-notch rear works in low light and can also be used one-handed to rack the slide on a belt or surface. Overall length is 6.60 inches, height is 4.80 inches — compact enough for concealed carry while holding 15+1 rounds. 
 
The adaptive textured grip gives consistent purchase through the full firing grip. The hammer-forged barrel is harder than a cast or button-rifled barrel, which means it should hold up well over a high round count. Two magazines are included.

The Hellcat Pro OSP in FDE draws positive feedback from carry-focused shooters. The 15+1 capacity for a pistol this size comes up in almost every review — it's competitive with larger compact pistols while staying thinner for concealed carry. The optic-ready slide is frequently cited as a reason to pick this over the standard Hellcat, since no milling is required to add a red dot.

Ergonomics get consistent praise. The grip texture and overall dimensions feel natural to most shooters, and reliability reports are generally clean.

Trigger feel is subjective and divides users. Some find the pull weight and reset exactly where they want it; others wish it were lighter or had a more positive reset. The price comes up occasionally — most users think it's fair given the features, but a few compare it to similarly priced Sig and Glock compact options and consider those alternatives. Holster availability was a concern early on but has improved as the platform has aged. A handful of users note it runs slightly larger than expected for something marketed as a compact.