CZ stands for Ceská Zbrojovka. The company headquarters are based in Uhersky Brod, a small town in the Czech Republic. The present-day CZ was set-up in 1936 as a subsidiary of CZ Strakonice, which was, in turn, a subsidiary of Zbrojovka Brno – the armaments industry grew rapidly in the new Czechoslovakia at the time, and Uhersky Brod seemed like a great location since it was secluded and lay beyond the range of German bombers. In 1939, German forces occupied Czechoslovakia and the company was renamed to Böhmische Waffenwerke. Until 1945, they made machine guns LK-30 and MG-17 for the German army. After World War II, Russians gained control of the entire region and the company was nationalized by the communist government. Along with firearms, the company produced parts for the CZ 125 motorcycle and parts for sewing machines. In 1957, they started producing Model 58 assault rifle, a Czech version of AK-47. In 1961, the renowned Skorpion machine pistol entered production. The famous CZ 75 pistol was launched in 1975. Ceská Zbrojovka became an independent company in May 1992 when the “iron curtain” fell. Today, they are one of the biggest manufacturers of light firearms. CZ 75, the famous pistol, is used as a basis by many other firearm manufacturers.
CZ 550, a bolt-action rifle, was first introduced in 1997 when it replaced CZ 537. It features a fixed magazine, but some models, chambered for .22-250 Rem., .243 Win. and .308 Win. can also come with a removable magazine. CZ 550 has an emergency gas pressure release valve on the right of the receiver. There are four locking lugs on the bolt. It has no mounting holes on the receiver; instead, the receiver is equipped with a 19mm dovetail for mounting purposes. CZ 550's action is controlled-feed. The safety catch is located on the right of the receiver, behind the bolt lever. CZ 550 rifles are chambered for .22-250 Rem., .243 Win., .308 Win., 6.5x55, .243 Win., .270 Win., 7x57, 7x64, .308 Win., .30-06 Sprg. and 9.3x62 (caliber range depends on the CZ 550 model). CZ 550 Magnum is chambered for 7mm Rem. Mag., .300 Win. Mag., .375 H&H, .416 Rem. Mag., .416 Rigby, and .458 Win. Mag. CZ 550 Scandinavian is a little bit different from other CZ 550 rifles – it has a raised back to its stock. It also has no dove-tail on the receiver but 4 mounting holes, two at the front mounting surface and two at the rear mounting surface.
Rifles CZ 550 Magnum and Brno ZKK 602 have the actions of same dimensions, which is why they share the same mounts.
A: / (no holes)
B: / (no holes)
C: / (no holes)
BHU: 0 mm
R1: Prisma 19
R2: Prisma 19
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For CZ 550 Magnum, fixed one-piece ring mounts are manufactured from steel. Additionally, they are available in a two-part design. This means that the base and the rings are separated from one another. These mounts are very light, appealing and elegant.
In this category, there are mounts that can be removed without tools or other instruments; they can be removed with the use of bare hands. Usually, they do not offer full repeatability. The mounts in this category are advantageous in terms of transport – the riflescope and rifle can be transported individually. When reattaching the scope on the rifle, the point of impact shifts up to 10 cm on 100 m. Usually, they are marked with QR (quick release) or QD (quick detachable) abbreviations.
Repeatable mounts are the most sophisticated mounts available. They offer the possibility to remove the telescopic sight from the rifle and mount it back again without the need of re-zeroing. Repeatable detachable mounts are basically the same as detachable ring or scope rail mounts with a difference in mounting mechanism. Repeatable detachable mounts are designed with a precise clamping mechanism where the same clamping force is achieved in every attachment with the help of a lever – the same position of the mount is guaranteed. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations.
Pivot mounts fall into the category of repeatable detachable mounts. Detachment and re-attachment are very easy – the scope is inserted into the notch of the front base under a 90 degrees angle to the barrel. After that, the scope is pivoted until it is locked by the rear base. Pivot mounts are durable, elegant, light, and small. They are usually quite expensive in relation to other types of mounts. The installation on the rifle should be done by a skilled gunsmith. Most of the times, pivot mounts are higher than 14 mm.
Pivot ring mounts guarantee 100 % repeatability. For this rifle, they are available in a one-piece version. They allow simple installation of multiple riflescopes or red dot sights on a single rifle.
For this rifle, pivot rail mounts are available in a one-piece version. They allow simple installation of multiple riflescopes or red dot sights on a single rifle and guarantee 100 % repeatability. These mounts are almost the same as pivot mounts with rings but are intended for mounting of scopes with Zeiss ZM/VM rail, Swarovski SR rail, S&B Convex rail or traditional LM rail. Such setup tends to be a bit higher than with ring mounting but this is usually not a problem for scopes with a 50 or 56 mm objective lens. One-piece Pivot mounts for rails clamp on the rail of the scope and provide a very reliable mounting solution.
The Picatinny rail is on a good way of becoming a global standard for mounting since it was invented in 1995. Developed on the Weaver template, the biggest advantage of the Picatinny rail is that it can be used throughout its entire length, unlike Weaver which has predesignated slots for mounting, limiting its usability and versatility. Ease of use and interchangeability are also its assets. A Picatinny rail has slots evenly placed, namely 5.23 mm from one another. The slots are 3 mm deep. Because of this, the mounting is identical on all firearms using the Picatinny standard. Picatinny rails are usually available in 0 MOA or 20 MOA inclinations. A Picatinny rail can accommodate all types of mounts, also those designed for the Weaver standard. Full-size mounts of this type are designed for mounting of modern optics such as thermal or digital devices.
Aimpoint Micro devices are tube dot sights for military use but are also gaining in popularity on the civil market. There are two types of models: the H models are designed for hunters, while the T models are designed for military users. There are three available Aimpoint Micro mounting solutions: repeatable, fixed and detachable. Every time an Aimpoint Micro is reattached to the rifle with a detachable mount, the rifle has to be re-zeroed. Repeatable mounts hold zero. Usually, detachable mounts are marked with QR (quick release) or QD (quick detachable) abbreviations.