The Kastle EXPS-226™ lower⅓ co-witness optic riseroffers a 2.26″ optical centerline height, which promotes a heads-up posture for faster target acquisition. It is designed for use with the EOTECH™ EXPS series and similar lower ⅓ co-witness optics. The EXPS-226™ features our patented titanium KastleClamp™ mounting technology. Proudly made in America from 7075-T651 aluminum and type III MIL SPEC hardcoat anodized in 5 available finishes.
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Foundation of Excellence
Tough Framework
Machined in our own state of the art facility the FORTRESS™ series optic mounts boast the most rigid and durable designs on the market. Understanding the imperatives of tactical operations, every product in the Kastle line is tailored for optimal human interaction with their weapons platform. With feedback from warfighters, law enforcement professionals, and competitive shooters, our offerings undergo rigorous field testing, ensuring that they don't just meet expectations—they redefine them.
Open-Source Mounting
The Kastle™ Mount utilizes industry-standard Picatinny rail compatibility, allowing installation on almost all modern weapons systems.
Lifetime Warranty
Kastle Group Warranty Policy
Kastle Group, LLC stands behind the quality of its products and offers replacement or service for any defects in materials or workmanship.
Warranty Terms:
Machined Mechanical Products: Lifetime coverage.
If a product has been discontinued, a replacement may not be available. In such cases, our customer support team will assist you in identifying the best possible solution.
Important Information:
Applying excessive torque to fasteners can result in damage to mounts or optics and will void the warranty.
The improper use of thread-locking agents, such as VibraTite®, Loctite® or similar products, will invalidate the warranty.
Every aspect of our process is approached with the highest level of detail to both form and function. We believe a superior product should perform impeccably and look equally impressive. In an era where production is often outsourced, our lineage in advanced in-house manufacturing shapes our steadfast commitment to precision, reliability, and unparalleled quality.
The EXPS-226™ was designed to bring a lower 1/3 co-witness optic like the EOTECH® EXPS at an optical centerline of 2.26".
Pairing the EXPS-226™ with an absolute co-witness optic such as an EOTECH® XPS will produce a different optical centerline of 1.98".
Combination Specs
EXPS-226™ + EOTECH® EXPS = 2.26" OC
EXPS-226™ + EOTECH® XPS = 1.98" OC
XPS-226™ + EOTECH® XPS = 2.26" OC
XPS-226™ + EOTECH® EXPS = 2.53" OC
Which color should I buy?
Black- You should know this one.
Flat Dark Earth - Traditional deep & rich FDE color. Pairs great with all shades of FDE.
Desert Sand - On the lighter side of the "Tanodize" spectrum and pairs well with less saturated shades of tan or FDE.
Clear - This anodize produces a champagne grey finish that shifts with the light. Pairs great with all clear ano and Q™ products.
OD Green - No, we didn't forget about this classic. Pairs well with anything olive drab or ranger green. Also a good match with Noveske™ bazooka green.
Pro Tip: Try mix-matching colors for a unique look.
Disclaimer: Anodize processing varies slightly in color by batch. Anodize may look different than what is pictured.
What is the in-lb torque spec?
Using the supplied T25 bit driver & Vibra-Tite™, gently tighten each mounting screw before applying final torque.
Torque screws to 35 in-lbs.
Customer service
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