Kozap Slip-On Base, ZKM 511

• Rifle-specific fit: This slip-on base is made for the ZKM 511 / CZ 511 pattern, giving a direct interface that matches the rifle’s receiver geometry and helps keep scope alignment straightforward.
• 8 mm KOZAP interface: The base works with the Kozap Ø 8 mm Interface, so it serves as the foundation for a modular mounting setup rather than forcing a one-piece all-in-one solution.
• Low-profile fixed design: A fixed slip-on base keeps the mounting arrangement simple and compact, which helps preserve the rifle’s handling and avoids unnecessary bulk above the action.
• Black finish: The black surface treatment gives the base a subdued appearance that blends well with sporting rifles and helps the mount look consistent with common scope and action finishes.
• Czech-made construction: Built in the Czech Republic, this base reflects KOZAP’s focus on rifle-specific hunting mounts and practical mounting solutions for established European rimfire and sporting platforms.

About the Kozap Bases Series

Kozap Bases are part of KOZAP’s rifle-specific mounting range, developed as the foundation for scope installations where the shooter needs the correct interface before selecting the upper mounting components. Within the company’s catalog, these bases sit alongside complete mount systems and are intended for firearms that benefit from a dedicated fit rather than a universal rail. That approach is especially relevant on classic rimfire and sporting rifles with factory dovetails or receiver shapes that call for a model-specific solution.

The series is defined by application-specific geometry, with base options listed for rifles such as the CZ 512, CZ 527, Brno 802, Brno Effect and Brno ZKM 611. KOZAP also offers both one-piece and two-piece configurations across parts of its mount catalog, as well as CLASSIC and ALFA designs, so the base system fits into a broader ecosystem of fixed and quick-release mounting concepts. In practical use, the series is aimed at hunters and sporting shooters who want a stable starting point for a scope mount while retaining the ability to choose the ring or upper assembly best suited to their optic.

About the Kozap Slip-On Base, ZKM 511

The Kozap Slip-On Base, ZKM 511 is a rifle-specific fixed base intended for shooters using a ZKM 511 / CZ 511-type platform and wanting a clean way to prepare the rifle for a scope mount. Its role is straightforward but important: it creates the correct lower interface between the rifle and KOZAP’s upper mounting components, which is essential for a secure and properly aligned optic installation.

The practical advantage of this design is its slip-on base format. Instead of adding a bulky universal rail, it stays focused on the receiver pattern it was made for, which helps keep the mounting arrangement compact and proportionate to a rimfire rifle. That matters on lighter sporting rifles where balance and easy handling are part of the appeal. The base is also built around the Kozap Ø 8 mm Interface, making it suitable for users who want to build a mounting setup in stages and match the upper portion to the optic they plan to use.

Its black finish keeps the appearance discreet and consistent with typical hunting optics and blued or black rifle actions. As a fixed mount component, it is best suited to shooters who value a simple, stable setup for regular field use, training, or small-game and sporting applications where repeatable positioning and a tidy overall profile matter more than rapid-detach functionality.

About Kozap

KOZAP Uh. Brod, zbraně a střelivo spol. s r.o. is based in Bánov, Czech Republic. The company is known for producing rifle scope mounts for hunting firearms, with a catalog that covers both traditional and more modular mounting solutions. Its range includes one-piece and two-piece configurations, as well as Picatinny and Weaver rail products for shooters who need different optic interfaces.

Within its mount lineup, KOZAP offers established product families such as CLASSIC, ALFA quick-release and PRIM swivel models. The catalog also includes rifle-specific solutions for platforms such as the Brno 500, ZH 300, CZ 550 and CZ 557, which reflects the company’s emphasis on firearm-specific fit rather than generic mounting hardware. That specialization makes KOZAP particularly relevant in the European hunting and sporting market, where correct receiver matching and practical field durability are central to mount selection.

Main Features

• Manufacturer: Kozap
• Series: Kozap Bases
• Made in: Czech Republic
• Color: Black
• Upper compatibility: Kozap Ø 8 mm Interface
• Lower compatibility: Accuracy International AW
• Lower compatibility: Anschutz 54.30
• Lower compatibility: Anschutz 1727 F
• Lower compatibility: Anschutz 1827 F
• Lower compatibility: CZ 452 (11 mm)
• Lower compatibility: CZ 452 (3/8")
• Lower compatibility: CZ 453 (11 mm)
• Lower compatibility: CZ 511
• Lower compatibility: CZ 512
• Lower compatibility: CZ 513
• Lower compatibility: CZ 455
• Lower compatibility: CZ 457
• Lower compatibility: Erma Werke M1
• Lower compatibility: Krico 400
• Lower compatibility: Mauser 86SR
• Lower compatibility: Sako Quad
• Lower compatibility: Savage Model 389
• Lower compatibility: Savage Model 73
• Lower compatibility: SIG Sauer 200 STR
• Lower compatibility: SIG Sauer 3000
• Lower compatibility: Steyr Mannlicher Zephyr II
• Lower compatibility: Tikka T1x
• Lower compatibility: Voere K15A
• Lower compatibility: 11 mm Flat Top Dovetail

Warranty

KOZAP states a 2-year warranty for this mount base. That period matches the product’s general specification and suits a fixed mounting component intended for regular sporting and hunting use.