The Kimber Micro 9 STG is a compact single-action semi-automatic pistol chambered in 9mm with a 3.1-inch barrel and 7-round capacity. The black/stainless finish pairs an aluminum frame with a stainless slide. 
 

Key Specifications 

• Barrel Length: 3.1 inches 
• Caliber: 9mm 
• Capacity: 7 rounds 
• Condition: New in Box 
• Finish Per Color: Black / Stainless 
• Manufacturer: Kimber 
• Manufacturer Part Number: 3300213 
• Model: Micro 9 STG 
• Type: Semi Auto Handguns 
• UPC: 669278332130 
   

Detailed Features 

 
The Micro 9 is a scaled-down 1911 pattern (single-action trigger, grip safety, thumb safety), so it handles like a small 1911 rather than a striker-fired pistol. The 3.1-inch barrel keeps the package slim for IWB carry. The 7-round magazine is flush-fit; extended magazines are available from aftermarket sources. 
 
The black/stainless combination gives the slide a different visual character than all-black versions and adds some corrosion resistance on the slide without adding significant weight. 
 

Usage 

 
The Micro 9 STG is a dedicated carry pistol. The 1911-style controls are familiar to shooters already experienced with that platform. The single-action trigger is lighter and shorter than most striker-fired carry guns, which contributes to the accuracy users mention. The 7-round capacity is on the lower end for 9mm carry guns, which is the main practical tradeoff versus a larger-frame compact.

The Micro 9 generates consistent positive feedback on two fronts: the trigger and the form factor. Users who come from 1911 backgrounds find the action familiar and the trigger pull predictably short, which translates to better groups at the range than many comparably sized striker-fired pistols.

The compact size is well-received for carry, though users with larger hands note the grip is short and may require a pinky extension magazine for a full grip. This is a common criticism across most micro-compact pistols.

Reliability discussions are mixed. Most owners report no issues after a standard break-in period, but some batches have drawn criticism for picky ammunition preferences, particularly with hollow-point feeding. This pattern comes up enough in the community that it's worth running a variety of carry ammo before relying on the pistol for self-defense.

Kimber's quality control has improved in later production years, which is mentioned in several threads comparing early versus recent Micro 9 examples. Overall the reception is positive for shooters who prioritize trigger quality and 1911-style ergonomics in a carry-sized package.