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Case colouring refers to this pattern and is commonly encountered as a decorative finish on firearms. Case-hardened steel combines extreme hardness and extreme toughness, which is not readily matched by homogeneous alloys since hard homogeneous steels tend to be brittle, especially those steels whose hardness relies on carbon content alone.
Phosphate conversion coating is a chemical treatment applied to steel parts that creates a thin adhering layer of iron, zinc, or manganese phosphates to improve corrosion resistance or lubrication or as a foundation for subsequent coatings or painting.
Case-hardened Harvey armor was the first major development, followed by chromium alloyed and specially hardened Krupp armour. Ducol steel came into use in the 1920s, and was widely used on World War II era ships. Futuristic armor designs include electric armour, which would use electric shielding to stop projectiles.
The most ubiquitous example of the AK milled receiver. The milled lightning cut on the sides is slanted to the barrel axis. Type 4A/B AKM receiver stamped from a smooth 1.0 mm (0.04 in) sheet of steel supported extensively by pins and rivets. It went into production in 1959. Overall, the most-used design in the construction of AK-series rifles.
The AK-108 is a version of the AK-107 chambered in 5.56×45mm NATO, and the AK-109 is a less known and produced version chambered in 7.62×39mm. Like the rest of the AK-100 series , these newer AKs use synthetic materials such as black fiberglass-reinforced polymer for the pistol grip and heat shield .
A New Mexico prosecutor has withdrawn her appeal of the dismissed involuntary manslaughter case against Alec Baldwin, officially ending the years-long criminal case against the "Rust" actor in the ...
Alec Baldwin's legal saga over the fatal shooting that took place on the set of his movie Rust is officially over. Five months after his case was thrown out by a New Mexico judge, the district ...
The 7.62×39mm (also called 7.62 Soviet, formerly .30 Russian Short) [5] round is a rimless bottlenecked intermediate cartridge of Soviet origin. The cartridge is widely used due to the global proliferation of the AK-47 rifle and related Kalashnikov-pattern rifles, the SKS semi-automatic rifle, and the RPD/RPK light machine guns.