EAW Steel Picatinny rail, Heym SR 21

About Picatinny Rail

The Picatinny rail system is engineered with slots spaced precisely 5.23 mm apart, ensuring consistent and versatile usage along its entire length. This design allows for easy mounting and universal compatibility, meaning accessories designed for a Picatinny rail will fit perfectly, regardless of the manufacturer or production date. Valued for its affordability, durability, and reliability, the Picatinny rail has become a preferred choice among professionals and military personnel, dominating the scope mounts market in recent years.

The Picatinny design represents a significant improvement over the older Weaver standard. While the Weaver system has only a few predetermined slots, the Picatinny rail features continuous slots across its surface, offering greater flexibility for mounting devices at any location. Additionally, the slots on a Weaver rail are narrower, at 3.8 mm, which means scope mounts designed for Weaver rails can fit on a Picatinny rail. However, mounts specifically made for Picatinny rails do not fit on Weaver rails due to the size difference of recoil stoppers. This compatibility and versatility position the Picatinny rail as a superior mounting solution for various applications.

About the EAW

Founded in 1919, EAW is Germany's oldest active manufacturer of scope mounts and is globally recognized for its innovative, high-quality scope mounts. The company offers an array of Picatinny rails, meticulously designed to ensure a seamless integration with various rifle models. These rails provide a secure and precise fit, optimizing the positioning of optical devices. Renowned for their durability and reliability, EAW's Picatinny rails are highly favored by both professionals and firearms enthusiasts. Despite their superior quality, these mounts come at a higher cost.

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 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 EAW Steel Picatinny rail, Heym SR 21, is crafted from steel, providing exceptional hardness and durability compared to aluminum. This ensures a higher degree of repeatability with minimal wear over time. The rail features 15 slots and 4 mounting holes, all secured with 6-48 threading. A unique central channel allows the simultaneous use of the rifle's iron sights, providing a reliable backup option without needing to remove the rail when there is nothing mounted on it. This Picatinny rail is firmly attached to the rifle with 4 screws, ensuring a secure and stable mount.

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 30-year warranty.