INNOmount Picatinny rail for Heym SR21

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 Innomount

Innomount is a German-based manufacturer specializing in high-quality scope mounting solutions, known for their precision engineering and innovative designs. With a strong focus on durability and reliability, Innomount products provide the perfect connection between firearms and sport optics. The company employs advanced 3D CAD development, rigorous analysis, and state-of-the-art production technologies to ensure exceptional performance.

Their product range includes quick-release mounts, fixed mounts, Picatinny rails, tactical mounts, and specialized solutions tailored to various shooting applications. Trusted by hunters, sport shooters, and tactical professionals worldwide, Innomount continues to set industry standards with its cutting-edge designs and commitment to quality.

About the HEYM 

Founded in 1865 in Suhl, Germany, by Friedrich Wilhelm Heym, HEYM is a prestigious manufacturer of fine firearms. The company is renowned for its craftsmanship and innovation in producing hunting rifles and shotguns. HEYM initially made significant contributions with its patented hammerless drilling in 1891 and continued to expand its product line with high-quality firearms, exported notably to Russia and the USA.

About the Heym SR 21

The Heym SR 21 rifle model, introduced in 2001 as a successor to the SR 20, is a hand-made firearm known for its exquisite quality. This push-fed bolt-action rifle features a solid action body with an almost fully shrouded bolt, wooden bolt handle, and a removable magazine. The bolt action operates smoothly with a 60° bolt lift, aided by a fluted bolt and a three-position safety catch mounted on the bolt shroud. The SR 21's bolt has three locking lugs, reducing bolt lift for faster operation and allowing the bolt handle to be unhindered by a low-mounted scope. The rifle is equipped with two mounting holes at the front and two at the rear, with the front mounting surface higher than the rear. 

Variants

Heym SR 21 comes in seven variations:

• Classic
• Classic Keiler
• Classic Concord
• Super Classic
• Premium
• Royal
• Grand Royal

Calibres

Heym SR 21 is chambered for:

Medium Caliber

• .22-250 Rem.
• .243 Win.
• .25-06 Rem.
• .270 Win.
• .30-06 Spr.
• .30-06 AI
• .308 Win.
• 6.5x55 SE
• 6.5x64 Brenneke
• 7x57
• 7x64
• 8x57 JS
• 8x64 S
• 8.5x63 Brenneke
• 9.3x62

Magnum Caliber

• .270 WSM
• .300 Win. Mag.
• .300 WSM
• .338 Win. Mag.
• .375 Ruger
• 6.5x68
• 7mm Rem. Mag.
• 8x68 S

Mini Caliber (Only right hand)

• .222 Rem.
• .223 Rem.

Design of the Rail

The INNOmount Picatinny rail for Heym SR21 is made from high-strength steel, providing greater durability and wear resistance than aluminum. Its solid construction ensures reliable performance, even with frequent use.

The rail has four mounting holes with 6-48 threading, allowing for secure attachment of various optics. It is fastened with four screws, ensuring stability and accuracy under recoil.

Designed for precision shooting and hunting, this rail offers a durable and practical solution for mounting optics.

Mounting Dimensions

• A=21.9mm
• B=111.2mm
• C=12.8mm
• R1=15mm
• R2=16.5mm
• BHU=1.5mm

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.