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EAW Steel Picatinny rail, Heym SR 30

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EAW Steel Picatinny rail, Heym SR 30 Details


Picatinny rail consists of slots with 5.23 mm spaces between one another, which means that it can be used across its entire length. It is simple to mount and interchangeable – if something is made for a Picatinny rail, it will fit regardless of the manufacturer or manufacturing date. It is affordable, resilient and reliable – this is why it so commonly used by professionals and military. Because of all its great qualities, Picatinny rail has been dominating the rail market in the recent years.

Picatinny is a big step forward from the Weaver standard. Weaver has a few predesignated slots while Picatinny has slots all over its surface, allowing the device to be mounted wherever the user finds it fitting. Weaver's slot is 3.8 mm wide, which is why all mounts made for Picatinny will also fit on a Weaver rail while those made for Weaver will not fit on a Picatinny rail. This is one of the main reasons why Picatinny is a far better mounting solution.

EAW is a German company, known for producting top-quality mounts. Their Picatinny rails, which are all made from steel, have a nice finish and come with a unique channel in the middle, allowing the user to clearly see the rifle's sights. Screws are included. EAW chooses only the best materials for their products. All of these great features; however, come at quite a steep price.

About the rifle

Heym is a firearms manufacturer from Germany, founded in 1865 – they have over 150 years of experience.  Their rifles, known for great handling, durability and accuracy, are still manufactured by hand.

SR30 is known for having one of the best straight-pull bolt designs. The rifle was introduced at IWA in 1996 and is already a deviation from the Mauser M98 locking system (the bolt is now pulled straight back). The bolt has three positions: half-cock position (100°), where both the bolt and its ball bearing are locked in place; the 85° position where the safety is released (the firing pin and trigger mechanism are set); and the final position which happens after firing when the user pulls the bolt handle back (ball bearings are retracted, the cartridge is ejected from the action). The top of SR30's action is rounded. It is chambered for these calibers: .243 Win., 6x62 Freres, 6.5x55SM, 6.5x57 mm, 6.5x65 RWS, .270 Win., 7x57 mm, 7x64 mm, .308 Win., .30-06 Sprg., 8x57 mm and 9.3x62 mm, .22-250 Rem., .26-06 Rem and 8x64S. In 2000, a left-handed version was introduced in all the usual calibers. The bolt is straight, allowing the user to mount the sight low on the action. There are 2 mounting holes on both mounting surfaces.

Heym SR 30 has a similar action as Heym SR 21. The radiuses of the mounting surfaces are the same but there is a difference in B distance (see the picture below). This is why two-piece mounts made for Heym SR 30 will fit Heym SR 21 while one-piece mounts made for Heym SR 30 will not fit Heym SR 21.

Mounting details

A: 21.9 mm
B: 118.5 mm
C: 12.8 mm
BHU: 1.5 mm
Fi: 6-48
R1: R16.5
R2: R15

Mounting instruction

Remove all the stains (grease, oil etc.) from the rifle's receiver with a cleaning fluid (acetone). Once the surface is clean and dry, check whether the screws match the rail and the holes on the receiver. Make sure that the Picatinny rail is compatible with the the rifle by inspecting the mounting holes on both. Before mounting the rail permanently, apply a minimal amount of thread-locking fluid 278 or 648 on screws and contact surfaces. Be careful not to get the fluid in or near the mounting holes. Carefully clean the remaining excess fluid around the rail with a cleaning fluid. Using a torque driver, screw the screws appropriately (up to 2.2 Nm) – do not overtighten.


The product has a warranty period of 30 years.

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EAW Steel Picatinny rail, Heym SR 30 Specifications

Mount seriesEAW Picatinny Rails
Base typePicatinny
Suitable forHeym SR 30

A, B and C markings refer to the distances between holes on the rail/mount. A is the distance between the front two holes on the rail/mount.

A,B,C distances

21.9 mm

A, B and C markings refer to the distances between holes on the rail/mount. B is the distance between the holes in the middle (usually, that is the distance between the 2nd and 3rd hole on the rail/mount).

A, B, C distances

118.50 mm

A, B and C markings refer to the distances between holes on the rail/mount. C is the distance between the rear two holes on the rail/mount.

A, B, C distances

12.8 mm
BH height

BH stands for Bauhöhe (ger.) which means overall height. It is measured from the mounting surface of the rifle to the lower surface of the riflescope's tube.

BH height

6.5 mm

Often, the elevation adjustment that the riflescope offers is not adequate to compensate for the bullet drop when shooting at long range. When the riflescope runs of out of elevation, a mount with an inclination is needed. 20 MOA is the most common inclination. With it, the user gains 58.2 cm / 100 m of additional elevation range when shooting at the range of 100 m. This is approx. 5.8 Mrad of elevation.

Length163 mm
Warranty30 years
Made inGermany
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