Optik Arms Picatinny rail - Mauser K98 (B= from 101 to 106mm), 20 MOA

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 Mauser

Mauser, founded in 1811 in Oberndorf, Germany, started as a royal weapon forge and gained fame with the rotating bolt system. This innovation set the stage for the iconic Mauser Gewehr 98, which influenced global military rifle designs. Post-World War II, the factory was dismantled, but Mauser continued to innovate, later merging into what is now known as Mauser-Werke Oberndorf Waffensysteme GmbH. Today, it operates under the Blaser Group, continuing its legacy with models like the M03, M12, and M18.

About the Mauser M98 Standard

The Mauser M98 Standard is a shorter version of the classic bolt-action hunting rifle introduced in 1998 and still in production. It features an enlarged receiver for added strength and durability, with a controlled round feed bolt action system. The bolt body includes three locking lugs, two at the front and one at the rear. The rifle has an internal spring box magazine that holds up to five standard cartridges and a detachable floorplate. It comes with a single-stage trigger preset at a pull weight of 1361g (3 lbs). The possible barrel lengths for the Mauser M98 Standard are 510 mm (20.1 inches) and 560 mm (22 inches). The receiver is drilled and tapped with four mounting holes: two at the front and two at the rear.

Variants

The rifle is available in the following variants:

• Mauser M98 Standard Expert
• Mauser M98 Standard Diplomat
• Mauser M98 Standard DWM

Calibres

Mauser M98 Standard can be chambered for the following calibres:

• 7x57  
• .308 Win.
• .30-06 Spr.
• 8x57 JS
• 9.3x62

Inclination

20 MOA inclination is only needed when the scope runs out of elevation. For example, when shooting at the range of 100 m, shooter gains 58.2 cm / 100 m of additional elevation range with a 20 MOA mount. This is approximately 5.8 Mrad of elevation. To make things even clearer – if the target was placed at 100 m, the scope with 20 MOA inclined rail would aim to the center of the target while the rifle’s barrel would aim 58 cm higher than the scope. This gives the shooter extra elevation needed for long range shooting. If you plan to shoot on distances longer than 600 meters, 20 MOA is most common. There is no negative effect of the inclined Picatinny rail in the mounting setup if you only shoot on shorter distances. The same goes also the other way around, since if you don’t shoot on extreme distances then Picatinny rail with inclination is not needed.

Design of the Rail

The Optik Arms Picatinny rail - Mauser K98 (B= from 101 to 106mm), 20 MOA, 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.

Equipped with 14 slots and 4 mounting holes using M3.5 threading, the rail offers versatile mounting options for various optics. The B dimension is adjustable from 101 mm to 106 mm due to the oval hole. 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. Secure attachment is achieved through 4 screws, ensuring stability and accuracy under recoil.

This rail is designed to meet the demands of precision shooters and hunters, combining durability with practical features for optimal performance.

Mounting Dimensions

• A=21.9mm
• C=12.7mm
• R1=14.5mm
• R2=18mm
• BHU=4mm

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 - Mauser K98 (B= from 101 to 106mm), 20 MOA can be mounted on the following rifles, which share the same mounting standard:

• Mauser M12 (pre-2019)
• Mauser 98 Action (Without Bulb)
• Musgrave K98

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 and 4 screws to securely attach the rail to your firearm.

Warranty

This product comes with a 10-year warranty.