Platforms

At CROM, innovation drives everything we do. From precision-engineered firearms to cutting-edge components, we’re dedicated to creating products that push performance boundaries. Backed by years of research and led by industry expert Rob Sotelo, our mission is to deliver the next generation of firearm technology—crafted for shooters who demand the best.


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Reviews

What Our Clients Are Saying

James M.

I’ve used a lot of platforms in my time, but nothing compares to the craftsmanship and reliability of CROM. Every part feels solid, and performance is consistently smooth. These guys know what they’re doing.

Rachel K.

What impressed me most is how forward-thinking CROM's designs are. The Extremis Ballistic line is like nothing I’ve seen before—smart, lightweight, and tough as nails.

Ethan R.

From the initial order to the final setup, everything was seamless. Their support team is responsive, and the product quality is next-level. I’m already planning my next build with them.

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Product Categories

Explore Our Core Product Lines

From precision parts to full platforms, CROM’s products are built to perform. Discover our specialized categories—each crafted with innovation, tested for reliability, and engineered for shooters who demand excellence.

Hocatt™ Ozone Sauna

CROM PCC Parts and Accessories

Precision Components for Next-Level PCC Performance

Our PCC (Pistol Caliber Carbine) parts and accessories are engineered for serious shooters who demand reliability and control. Whether you're customizing for competition, defense, or personal style, CROM delivers finely machined parts that enhance performance without compromise. Explore upper receivers, handguards, triggers, and more — all designed to integrate seamlessly and operate flawlessly.

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Hocatt™ Ozone Sauna

Extremis Ballistic Products

Advanced Ballistic Solutions for Real-World Scenarios

Extremis represents the cutting edge of ballistic technology. Built with combat-tested materials and designed for maximum protection and performance, these products are developed for those who face the toughest environments. From body armor components to rugged field-ready equipment, Extremis Ballistic Products redefine what’s possible when innovation meets resilience.

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Hocatt™ Ozone Sauna

Platforms

Complete Firearm Platforms Built from the Ground Up

Our full firearm platforms are the result of years of engineering, field testing, and refinement. Every build reflects CROM’s commitment to modular design, intuitive function, and uncompromising quality. Whether you’re looking for a base to build your dream rifle or a complete setup ready for action, our platforms offer unmatched reliability and performance out of the box.

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We Serve Through Three Core Categories

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CROM PCC Parts and Accessories

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Extremis Ballistic Products

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Platforms