Zero Compromise Optic (ZCO) are specialists in the premium optic market, providing industry-leading solutions to defence markets globally.

ZCO staff include members that hold multiple patents in the rifle scope industry, have designed some of the most robust mechanical systems that are still being used today, and have held top level management positions, including a retired US military officer.

High-quality rifle scopes for the military

Our passion, dedication, and complete focus is building nothing but the highest quality rifle scopes. This can only be accomplished with the most modern and technologically advanced optical and mechanical designs which we have integrated into our products.

To meet our end goal, every single rifle scope is subject to extreme and intensive real-world testing, such as impact and vibration, prior to leaving the facility.

We fully understand that dedicated life-long customers will be the foundation and driving force for future innovations and product development, and as such we manufacture to deliver uncompromised performance that surpasses our customer’s expectations.

All ZCO products are hand assembled in Austria and the US. The high quality and precision of ZCO rifle scopes will never be compromised nor sacrificed in favour of production quantity.

Premium optical performance for demanding military applications

Our op­ti­cal en­gi­neers have set the next stan­dard for clar­ity, light trans­mis­sion and res­o­lu­tion in a com­pact pack­age. Never be­fore has such per­for­mance been seen in this mag­ni­fi­ca­tion range and lens size.

Total light trans­mis­sion is 92%, while main­tain­ing ex­cel­lent colour fidelity matched with best-in-class res­o­lu­tion for the ul­ti­mate view­ing ex­pe­ri­ence. The very best in op­ti­cal per­for­mance re­sults in height­ened view­ing com­fort for all day use, so you can enjoy being be­hind your scope for ex­tended shoot­ing ses­sions.

Reliable optical performance for extreme environments

The 36mm main tube enables extra internal room to isolate and protect the optical components so that they can withstand external distortion, stress, and impacts. This ensures stable and consistent mechanical and optical performance, helping to maintain point of impact under a wide variety of environmental extremes.

Our design is also stronger in critical junctions and mechanical areas due to a thicker cross section in specific areas. The scope body is an exoskeleton that provides the foundation for the optical and mechanical components to come together, and we go to great lengths to build the strongest and most stable scope bodies available to the defence industry.

Every ZCO rifle scope body begins as a solid aluminum billet that is fully CNC machined and stress relieved several times throughout the machining process, virtually eliminating stress or ‘memory’ in the scope body.

Our machining process ensures your point of impact remains unchanged from moderate to extreme temperature fluctuations.

Every scope is a compromise between optical performance and mechanical capability. ZCO‘s 36mm main tube design yields cutting-edge optical performance with no compromises to the mechanical system.

Durable optical products for the defence industry


The Zero Compromise Optic ZC420 combines premium optical performance with high-level mechanical precision in one of the best ultra-short designs developed.

It combines the highest levels of mechanical precision, advanced optical performance, and extreme durability in a compact package that can compete with much larger riflescopes.

This small riflescope has a length of 325mm (12.8 inches) and a weight of only 986g (34.8oz), making it ideal for any application where size and performance are paramount.

The low magnification provides a wide field of view for rapid target acquisition, while the mechanical system allows for 35 mils of elevation adjustment for the extreme long range engagements when required. Never before has so much performance been combined in such an elegant and compact riflescope.

ZC 527

The Zero Compromise Optic ZC527 is 387mm (15.24 inches) long, weighs only 1075g (37.9oz) and reaches 35 mil in elevation adjustment and 21 mil in windage adjustment.

Of all other optics in this magnification range, a very generous field of view of 7m / 100 meters (21ft/100Yds) results in one of the widest in the industry. Optimal light transmission and exceptional resolution are just two attributes of one of the best optical design ever developed, perfectly complementing the very best mechanical properties in the industry.

The 36mm main tube allows additional internal room to isolate and protect the optical components to withstand external distortion, stress, and impacts. This results in the most stable and consistent optical and mechanical performance to maintain point of impact under a wide variety of environmental extremes.

ZCO’s mission

Our goal is not just to build ri­fle­scopes, but to build the best ri­fle­scopes in the world. We don’t com­pro­mise on qual­ity, we sim­ply use the best ma­te­ri­als and tech­niques to cre­ate the scope you have al­ways dreamed of.