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Steyr Monobloc

The History of Steyr

The story of Steyr Mannlicher began in 1821 when Leopold Werndl, a blacksmith, started manufacturing iron parts for firearms in the city of Steyr. His son Josef Werndl took over his business and founded the 'Josef und Franz Werndl & Comp. Waffenfabrik und Sägemühle in Oberletten ' in 1864. In the following years, he played a crucial role in the development of several rifles, including the straight pull-rifles M. 85 and M. 86. At the beginning of the 20th century, the engineers Ferdinand Mannlicher and Otto Schönauer developed the Original Mannlicher Schönauer, a legendary hunting rifle, the production of which took place until 1973. The company grew over the years and reached a production capability of 4.000 firearms per day before World War I. After the War, Steyr was prohibited from firearm manufacturing after the Treaty of Saint-Germain-en-Laye was signed. To avoid going bankrupt, they used their knowledge and machinery to manufacture cars, bicycles, motorcycles, tractors, trucks, dynamos, electric motors, and other things (they were not allowed to resume firearm production until 1930). In 1926, the company’s name was changed to Steyr-Werke AG. It merged with Austro-Daimler-Puchwerke AG in 1934 to form Steyr-Daimler-Puch AG. Both Austro-Daimler (previously a subsidiary of Daimler-Motoren-Gesellschaft) and Puch (founded by the Slovenian inventor and mechanic Janez Puh) were active in the automobile industry, with Puch also manufacturing bicycles, motorcycles, and mopeds.

They even employed Ferdinand Porsche for a time – he made several contributions to the company – one of them was designing an air-cooled 3.5 L V8 engine for the Steyr RSO Raupenschlepper Ost tracked vehicle. Steyr is known for modifying Fiat cars and adding their engines to some of the models (Steyr-Fiat 1100 Mod E and Fiat 1400, for example). In 1972, they cooperated with Mercedes in the design of Puch G, also known as Mercedes Benz G-class.

During World War II, the company focused on firearm, vehicle, aviation engine, and ball-bearing production for the German military. After a short firearm manufacturing ban after the end of the War, Steyr resumed the production of arms in 1950. In the years that followed, they presented many innovative firearms such as StG 77 (also known as Steyr AUG), an assault rifle with a bullpup design; SSG 69, which was ahead of its time after its release in 1969, and many others. In 1989, Steyr-Daimler-Puch AG broke up into different sectors; Steyr Mannlicher AG became independent. The company has strived to be internationally oriented, so it changed its name to Steyr Arms in 2019. 

Steyr Monobloc Rifle Review

Steyr first announced the Monobloc rifle in 2018; however, it hit the shelves a year later - in 2019 and is still manufactured in 2022. The rifle’s main attribute is the modular design which allows for most components to be quickly replaced and the whole rifle disassembled. Being made of light polymer with an aluminum bedding block, the stock of the rifle is ergonomically designed for the utmost comfort during shooting. It can be adapted in numerous ways by changing the structural components such as bolt head, magazine, cheekpiece, leather inlays, buttpad spacers, bolt handle shape etc.

The bolt which runs on two rails comes with three locking lugs. To remove the bolt, it must be pulled back while pressing the trigger simultaneously. Increasing the accuracy of the rifle, the barrel and the action are made from a single block of steel – this is where the name ‘Monobloc’ is derived from. The entire monobloc assembly is interchangeable to be changed for different calibers. Holding up to four rounds, the magazine is detachable and made of high-quality stainless steel and aluminum. The trigger unit can be completely removed from the rifle and stored separately in the compartment inside the hollow polymer stock which is accessible by turning the recoil pad to the side. The monobloc comes with a forward set trigger as a standard option. It can be adjusted by turning a small screw positioned directly behind the trigger on the inner side of the trigger guard. The recoil pad at the end of the stock is made of soft rubber and is adjustable. Additionally, it allows for adding spacers to adjust the length of pull. On the bottom of the forearm and the handle, there are leather infills which can be easily changed by pressing the button at the front end of the forearm. The front end of the forearm is suitable for mounting a bipod.

Steyr has developed a new tilt-up scope mount to be fitted on the top of the receiver with four grooves for mounting purposes. The rifle features a manual hand cocking lever on the action tang which also locks the trigger and the bolt. The firing spring is not under tension until a lever is pushed forward, making the transportation of the rifle significantly safer. Additionally, a suppressor can be mounted on the front end of the barrel.

Steyr Monobloc is available in the following barrel lengths: 508 mm (20-inch), 558 mm (22-inch) and 610 mm (24-inch).

Steyr Monobloc, chambered for .30-06 Spr.

Figure 1: Steyr Monobloc, chambered for .30-06 Spr. (Source: https://www.jagdaktiv.de/STEYR-Monobloc-gruen-schwarz-Kaliber-30-06-Spring)

Steyr Monobloc Calibers

Steyr Monobloc is available in the following calibers:

  • .270 Win.  

  • .308 Win. 

  • .30-06 Spr. 

  • .300 Win. Mag. 

Steyr Monobloc Variants

The rifle is available in the following variants:

  • Steyr Monobloc White-Sand

  • Steyr Monobloc White-Orange

  • Steyr Monobloc White-Brown

  • Steyr Monobloc White-Black

  • Steyr Monobloc Green-Sand

  • Steyr Monobloc Green-Orange

  • Steyr Monobloc Green-Brown

  • Steyr Monobloc Green-Black

  • Steyr Monobloc Brown-Sand

  • Steyr Monobloc Brown-Orange

  • Steyr Monobloc Brown-Brown

  • Steyr Monobloc Brown-Black

  • Steyr Monobloc Black-Sand

  • Steyr Monobloc Black-Orange

  • Steyr Monobloc Black-Brown

  • Steyr Monobloc Black-Black

The receiver of Steyr Monobloc comes with four grooves for mounting purposes, two on the front and two on the rear mounting surface. The grooves are suitable for Steyr’s tilt-up scope mount system. There is no height difference between the mounting surfaces.

The receiver of Steyr Monobloc, chambered for .30-06 Spr.

Figure 2: The receiver of Steyr Monobloc, chambered for .30-06 Spr. (Source: https://www.austriaarms.com/neuwaffen/12/2/37/1/5548/steyr_arms_monobloc_holzschaft_klasse_6%2C_.30-06_springfield/)

Scope Mounts Interchangeable With Steyr Monobloc

Rifles That Have One-Piece Scope Mounts Interchangeable With Steyr Monobloc

The necessary condition for rifles to have one-piece scope mounts interchangeable is that the mounting surfaces of these rifles match in every dimension.

Rifles That Have Two-Piece Scope Mounts Interchangeable With Steyr Monobloc

For two-piece scope mounts to be interchangeable, the mounting surfaces of the rifles must match in every dimension except the action length which can vary. This is because the distance between the two pieces of the mount is not fixed.

Please note, that Steyr Monobloc comes with a unique mounting surface suitable for Steyr’s tilt-up scope mounts, hence there are currently no rifles that have scope mounts interchangeable with Steyr Monobloc.

Best Scope Mounts for Steyr Monobloc

Picatinny Rails for Steyr Monobloc

Along with being rigid and recoil resistant, Picatinny rails are renowned for the number of mounting options they offer. We recommend the use of this Picatinny rail manufactured by the Steyr company which is designed to match the mounting surface of the Steyr Monobloc rifle perfectly. It is made of high-quality steel and comes with a ten-year warranty.

Detachable Repeatable Scope Mounts for Steyr Monobloc

Steyr company manufactures this unique two-piece QD mount suitable for Steyr Monobloc rifle. It is made of titanium and comes with a two-year warranty.

Help Us Build Our Riflescope Mounts Database

If you happen to own this or any other rifle, we would appreciate it if you could help us expand our database by sending us some photos of the rifle receiver (the bare mounting surface of the rifle without the scope mounts installed). For your help, our company offers a fair return in terms of practical rewards.

Please send us an email for more information. You can contact us here: info@optics-trade.eu

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