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ERA-TAC picatinny rail - Marlin 1895 / 336 / 338 / 308 / 444

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ERA-TAC picatinny rail - Marlin 1895 / 336 / 338 / 308 / 444 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 ring mounts made for a Weaver rail will also fit on a Picatinny rail while ring mounts made specifically for a Picatinny rail will not fit on a Weaver rail. This is one of the main reasons why Picatinny is a far better mounting solution.

Recknagel is currently the biggest manufacturer of mounts in Germany. Their Picatinny rails, known for great fit and finish, are mostly made of high-grade aluminum (a few are also made of steel), which is why they are very reliable. Screws are included. Currently, a common trend among rifle manufacturers is making receivers out of aluminum – mounting a Picatinny rail made of aluminum on one of those receivers is thus not problematic. Their products are marketed either under the name Recknagel or Era-Tac.

About the rifle

Marlin is a firearm manufacturer that currently produces semi-automatic, lever-action and bolt-action rifles. It was founded in 1870 by John Mahlon Marlin. During World War I, Marlin was the largest machine gun producer in the world (they produced firearms for the US and its allies). For a long time, they had been an underdog to Winchester as regards manufacturing lever-action rifles, but that changed during the 1980s when they gradually started to outpace them. Currently, they are the biggest and the most dominant lever-action rifles seller in the USA.

Marlin model 1894 is a classic lever-action rifle. It features a unique lever-fire system which works on the principle of repeat-fire. The ejection port is located on the right side, upper and left sides are blocked. Its action has a flat-bottom surface but is round-shaped. On each side of the action surface, there are two mounting holes – that's four holes altogether. The action has a solid top receiver and metal surface with hammer block-safety. The length of the original rifle is 105 cm (later, many variations were released: 1894CBC, 1894CL, 1894 Cowboy, 1894CS, 1894FG, 1894M, 1894P, 1894PG, 1894S and 1894SS). 10–14 tubular magazine runs the entire length to the muzzle – Marlin has kept this feature for more than 110 years. It is chambered for: .218 Bee, .25-20 Win., .32-20 Win., .32 H&R Mag., .38 Special, .357 Mag., .41 Magnum., .44-40 Win., .44 Special, .44 Magnum and .45 Colt.

Marlin 336, chambered for .30-30 Win., .35 Rem. and .44 Magnum is one of the most popular lever-action rifles in the history. It is based on the former 1936 Sporting Rifle which was renamed to M36 in 1937 (Model 336 replaced M36 in 1948). M36 featured a coiled spring instead of a traditional leaf spring, making it one of the first lever-action rifles with such system in history. Marlin 336 has a 20 or 24-inch barrel and a six cartridge tubular magazine. It ejects cartridges on the right side of the receiver and has a flat top. The action, which has two mounting holes on each mounting surface, is round-shaped with a flat bottom. Marlin released many versions of this rifle, based on the original 336 model: 336A, 336ADL, 336C, 336CC, 336 Cowboy, 336CS, 336ER, 336LTS, 336M, 336SS, 336T and 336W.

Marlin 444 CL is a lever-action centerfire rifle chambered for .444 Marlin caliber. It was introduced in 1965. The ejection port is located on the right side, upper and left side are blocked. Action, which is round-shaped, has a solid top receiver, metal surface, and hammer-block safety. There are two holes on each of the mounting surface. 444 CL is equipped with microgrooves on the top end of the barrel. Its barrel is 61 cm long. The tubular magazine provides space for 5 cartridges. 444 was succeeded by 444S and 444SS.

Marlin models 94, 336, 444 CL, Nr. 9, AS 30, 922, 45 and 1895 have actions of same dimensions, which is why they share the same mounts.

Mounting details

A: 12.8 mm
B: 69.9 mm
C: 12.8 mm
BHU: 0 mm
Fi: 6-48
R1: Flat
R2: Flat

Mounting instructions

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 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 10 years.

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ERA-TAC picatinny rail - Marlin 1895 / 336 / 338 / 308 / 444 Specifications

Mount seriesERA-TAC Picatinny Rails
Base typePicatinny
Suitable forMarlin 1894, Marlin 1895/3xx/444, Marlin 336, Marlin 444 CL, Marlin Lever Action, Marlin Nr.9

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

12.8 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

69.9 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

7.5 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.

Length136 mm
Warranty10 years
Made inGermany
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