Optik Arms Picatinny Rail - CZ527

About Picatinny Rail

The Picatinny rail system is meticulously designed with slots spaced at exact intervals of 5.23 mm, ensuring both consistent and versatile use throughout its length. This precision allows for straightforward mounting and guarantees universal compatibility, ensuring that scopr mounts tailored for a Picatinny rail will seamlessly fit, irrespective of the manufacturer or date of production. Favored for its cost-effectiveness, robustness, and dependability, the Picatinny rail is increasingly popular among experts and military users, becoming the top choice in the scope mounts market in recent years.

The Picatinny framework marks a notable enhancement over the traditional Weaver standard. Unlike the Weaver system, which has only a limited number of slots, the Picatinny rail boasts continuous slots across its entirety, providing enhanced flexibility for positioning devices at any desired point. Additionally, the slots on a Weaver rail are slimmer, measuring 3.8 mm, which permits scope mounts made for Weaver rails to be used on a Picatinny rail. However, due to differences in the width of the recoil stoppers, scope mounts specifically designed for the Picatinny rail cannot be accommodated on Weaver rails. This level of compatibility and adaptability makes the Picatinny rail a superior option for a variety of mounting needs.

About the Optik Arms

Optik Arms is a manufacturer renowned for its high-quality optical mounting solutions and firearms accessories, based in Bosnia and Herzegovina. The company specializes in producing durable and reliable products such as fixed mounts, detachable mounts, and Picatinny rails. Optik Arms implements rigorous quality controls and utilizes advanced technology to ensure the longevity and performance of their products. Each component undergoes thorough anti-wear and anti-corrosion treatments, which highlight their commitment to quality and customer satisfaction. The company's products are designed to meet the precise needs of both recreational shooters and professional marksmen, offering a variety of mounting options to accommodate different scopes and sighting systems.

About the CZ

CZ, also known as Česká zbrojovka, is based in Uhersky Brod, Czech Republic, and was established in 1936. Originally a subsidiary of CZ Strakonice, it was part of the rapidly growing Czech arms industry. After World War II, it was nationalized and produced diverse items under Soviet control. In 1992, it regained independence, expanding globally, including opening a U.S. facility in 2019.

About the CZ 527

The CZ 527 is a smallbore centerfire bolt-action rifle first introduced in 1990. It utilizes a "mini-Mauser" action system optimized for shorter and less powerful calibers and comes equipped with a controlled-feed bolt action with two locking lugs at the front of the bolt that lock into the steel receiver. Behind the bolt lever is a fold-down safety catch. The magazine catch is located on the right of the detachable magazine, which can hold up to five rounds. The CZ 527 also features a hammer-forged barrel and a single set trigger. The rifle was discontinued in 2021 and comes with a 16.5 mm dovetail with a recoil lug on the left side of the rear dovetail part. The dovetail is flat on top.

Variants

CZ 527 comes in the following variants:

• Carbine
• Carbine Synthetic
• Youth Carbine
• Lux
• Lux LH
• Night Sky
• American
• Varmint
• Varmint Laminated
• Varmint MTR
• Exclusive Ebony Edition
• Thumbhole
• Suppressor Ready
• FS
• Sporter

Calibres

CZ 527 is chambered for the following calibers:

• .17 Hornet
• .17 Rem.
• .204 Ruger
• .22 Hornet
• .221 Rem. Fireball
• .222 Rem.
• .223 Rem.
• 6.5mm Grendel
• 7.62x39
• .300 AAC Blackout

Design of the Rail

The Optik Arms Picatinny Rail - CZ527, is precision-engineered from steel, offering superior durability and wear resistance compared to aluminum alternatives. This high-strength construction ensures exceptional repeatability, even with frequent use.

The picatinny rail features 12 slots. A unique central channel enhances functionality by allowing simultaneous use of the rifle's iron sights, serving as a reliable backup when no accessories are mounted.

This picatinny rail is attached to the rifle with 16.5mm Dovetail with CZ 527 recoil notch

This rail can also be mounted on

Usually, a Picatinny rail can be mounted on multiple different rifles if they share the same mounting surface, which we commonly refer to as the mounting standard. The Optik Arms Picatinny Rail - CZ527 can be mounted on the following rifles, which share the same mounting standard:

• BRNO CZ 527
• 16.5 mm CZ/Brno

Mounting Instructions

Clean the rifle's receiver thoroughly with a cleaning fluid, such as acetone, to remove all stains, grease, and oil. Once the surface is clean and dry, verify that the screws fit both the rail and the receiver holes. Before mounting the rail, apply a minimal amount of thread-locking fluid (278 or 648) to the screws, avoiding any contact with the mounting holes. Carefully clean any excess fluid around the rail using the cleaning fluid. Using a torque driver, tighten the screws to the appropriate torque (up to 3 Nm/26.5 in-lbs). If you require any mounting tools, you can find them on our Rifle Scope Mounting Tools page.

What's in the box

Each package comes complete with one steel rail.

Warranty

This product comes with a 10-year warranty.