The Tristar P-100 is a single/double-action 9mm Luger pistol with an aluminum frame finished in Cerakote Black and a steel slide. At 2.3 lbs with a 3.7-inch barrel and 7.2-inch overall length, it's a compact-to-mid-size pistol. The 15-round capacity is generous for the size. 
 

Key Specifications: 

• Series/Collection: P-100 
• Action: Single/Double 
• Caliber/Gauge: 9mm Luger 
• Capacity: 15 rounds 
• Sight: Rear Snag-Free Dovetail, Fixed Front Blade 
• Slide Material: Steel 
• Safety Features: Trigger Safety, Hammer Lever Safety 
• Grip Type: Black Checkered Polymer 
• Barrel Material: Steel 
• Frame Material: Aluminum 
• Frame Finish: Cerakote Black 
• Barrel Length: 3.7 inches 
• Overall Length: 7.2 inches 
• Weight: 2.3 pounds 
   

Detailed Features: 

The aluminum frame keeps weight down without sacrificing durability, and the Cerakote finish holds up against wear and corrosion. The snag-free rear dovetail sight won't catch on clothing, which matters for anyone drawing from a holster under pressure. Single/double action gives a heavier first pull from double action, then lighter single-action follow-ups -- useful for those who want a decocker-style manual of arms. 
 
The checkered polymer grip provides enough texture for a secure hold. At 15 rounds of 9mm, the magazine capacity competes well against other guns in this class. 
 

Usage Scenarios: 

• Home Defense: 15+1 rounds and reliable feeding make it a practical bedside option. 
• Concealed Carry: Compact dimensions work for IWB carry for medium to large hands. 
• Range Training: The SA/DA trigger setup is useful for practicing both trigger weights.

The Tristar P-100 gets generally favorable reviews from owners who value the combination of price and features. The Cerakote finish draws consistent praise for its durability and appearance. Most owners report reliable feeding and ejection with a range of 9mm ammunition, and accuracy satisfies both range shooters and those who carry it.

The 15-round capacity is frequently cited as a selling point. The ergonomics work well for medium to large hands, and most owners find the grip comfortable through longer sessions.

The double-action first pull is heavier than some shooters expect, and a few describe the trigger as less refined than competing pistols at a similar price point. This is a meaningful consideration for competitive shooters but less so for defensive use. Aftermarket accessories are more limited compared to more popular platforms, which frustrates owners who want to customize.

Customer service experiences are uneven in user reports -- some owners had smooth interactions, others ran into delays or friction. Overall the P-100 is seen as a solid value option, especially for buyers who prioritize reliability and capacity over trigger refinement.