The Bond Arms Cyclops Thumper is a single-shot big-bore handgun chambered in .50 Action Express. It features a 4.25" single-bore barrel, a stainless steel frame and extended B6 resin grips. Fixed sights and a compact overall length make it intended for range use and specialty big-bore applications.
Key Specifications
- Caliber is .50 Action Express.
- The barrel measures 4.25 inches.
- This design is a single-shot firearm.
- The frame is made from stainless steel.
- Grip material is B6 resin with extended-style grips.
- Sights are fixed.
- The overall length is 6.75 inches.
- Trigger pull weight is reported as 7 lb in product details.
Purpose-built for shooters who need a compact, big-bore single-shot handgun, the Cyclops Thumper pairs heavy-caliber performance with straightforward, durable construction. Its stainless frame and extended B6 grips provide a secure handling platform while the fixed sights and short barrel keep the package compact for transport and range use. For collectors and shooters seeking a specialty big-bore option, the Cyclops offers a direct, no-nonsense approach to heavy-caliber shooting.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




