 | This article needs additional citations for verification .(May 2021) |
The Krummlauf (English: "curved barrel") is a bent barrel attachment for the Sturmgewehr 44 (StG 44) rifle developed by Germany in World War II. The curved barrel included a periscope sighting device for shooting around corners from a safe position.
It was produced in several variants: an "I" version for infantry use, a "P" version for use in tanks (to cover the dead areas in the close range around the tank and defend against assaulting infantry), versions with 30°, 45°, 60° and 90° bends, a version for the StG 44 and one for the MG 42. Only the 30° "I" version for the StG 44 was produced in many numbers.
The bent barrel attachments had very short lifespans—approximately 300 rounds for the 30° version, and 160 rounds for the 45° variant—as the barrel and bullets fired were put under great stress. Another problem besides the short life-span was that the bending caused the bullets to shatter and exit the barrel in multiple fragments, producing an unintended shotgun effect. As a result, weapons designers experimented with small vent holes drilled into the Krummlauf's barrel in order to reduce pressure and recoil, allowing the discharged bullets' built-up gases to be released to slow the bullet's velocity as it turned to exit the barrel. Nevertheless, the Krummlauf's lifespan remained the same. A triangular shield was also added to prevent venting gasses from clouding the mirror and optics. [1]
The 30° model was able to achieve a 35x35 cm grouping at 100m.
The Krummlauf in a Maschinenpistole Vorsatz (P) mount was developed as an alternative close defence weapon for tank destroyers. This mount was fitted to a roof hatch in many Panzer IV/70 (A) vehicles. The tank crew could then attach a StG 44 and use this as a close defence machine gun.
Experiments to adapt the Krummlauf to the PPSh-41 were conducted by the Soviet Union. [2]
A carbine is a long gun that has a barrel shortened from its original length. Most modern carbines are rifles that are compact versions of a longer rifle or are rifles chambered for less powerful cartridges.
A submachine gun (SMG) is a magazine-fed automatic carbine designed to fire handgun cartridges. The term "submachine gun" was coined by John T. Thompson, the inventor of the Thompson submachine gun, to describe its design concept as an automatic firearm with notably less firepower than a machine gun. As a machine gun must fire rifle cartridges to be classified as such, submachine guns are not considered machine guns.
The SA80 is a British family of 5.56×45mm NATO service weapons used by the British Army. The L85 Rifle variant has been the standard issue service rifle of the British Armed Forces since 1987, replacing the L1A1 Self-Loading Rifle. The prototypes were created in 1976, with production of the A1 variant starting in 1985 and ending in 1994. The A2 variant came to be as the result of a significant upgrade in the early 2000s by Heckler & Koch and remains in service as of 2023. The A3 variant was first issued in 2018 with several new improvements.
A recoilless rifle (rifled), recoilless launcher (smoothbore), or simply recoilless gun, sometimes abbreviated to "RR" or "RCL" is a type of lightweight artillery system or man-portable launcher that is designed to eject some form of countermass such as propellant gas from the rear of the weapon at the moment of firing, creating forward thrust that counteracts most of the weapon's recoil. This allows for the elimination of much of the heavy and bulky recoil-counteracting equipment of a conventional cannon as well as a thinner-walled barrel, and thus the launch of a relatively large projectile from a platform that would not be capable of handling the weight or recoil of a conventional gun of the same size. Technically, only devices that use spin-stabilized projectiles fired from a rifled barrel are recoilless rifles, while smoothbore variants are recoilless guns. This distinction is often lost, and both are often called recoilless rifles.
The StG 44 is a German assault rifle developed during World War II by Hugo Schmeisser. It is also known by its early designations as the MP 43 and MP 44. The StG 44 was an improvement of an earlier design, the Maschinenkarabiner 42(H).
The Steyr AUG is an Austrian bullpup assault rifle chambered for the 5.56×45mm NATO intermediate cartridge, designed in the 1960s by Steyr-Daimler-Puch, and now manufactured by Steyr Arms GmbH & Co KG.
A smoothbore weapon is one that has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars.
A rifle grenade is a grenade that uses a rifle-based launcher to permit a longer effective range than would be possible if the grenade were thrown by hand.
The FN MAG is a Belgian 7.62 mm general-purpose machine gun, designed in the early 1950s at Fabrique Nationale (FN) by Ernest Vervier. It has been used by more than 80 countries and it has been made under licence in several countries, including Argentina, Canada, Egypt, India, and the United Kingdom.
The Gyrojet is a family of unique firearms developed in the 1960s named for the method of gyroscopically stabilizing its projectiles. Rather than inert bullets, Gyrojets fire small rockets called Microjets which have little recoil and do not require a heavy barrel or chamber to resist the pressure of the combustion gases. Velocity on leaving the tube was very low, but increased to around 1,250 feet per second (380 m/s) at 30 feet (9.1 m). The result is a very lightweight and transportable weapon.
The Ak 5 is a license-built Swedish version of the Belgian FN FNC assault rifle, with certain modifications, mostly to adapt the weapon to the partially subarctic Swedish climate. The Ak 5 is the current service rifle of the Swedish Armed Forces, adopted in 1986, partially replacing the Ak 4, a license-built version of the Heckler & Koch G3.
The PPSh-41 is a selective-fire, open-bolt, blowback submachine gun that fires the 7.62×25mm Tokarev round. It was designed by Georgy Shpagin of the Soviet Union to be a cheaper and simplified alternative to the PPD-40.
The QSZ-92, sometimes known as the Type 92, is a semi-automatic pistol designed by Norinco.
The origins of the modern British military rifle are within its predecessor the Brown Bess musket. While a musket was largely inaccurate over 100 yards (91 m), due to a lack of rifling and a generous tolerance to allow for muzzle-loading, it was cheap to produce and could be loaded quickly. The use of volley or mass firing by troops meant that the rate of fire took precedence over accuracy.
CornerShot is a weapon accessory created by Lt. Col. Amos Golan of the Israeli Defense Forces in cooperation with American investors. It was designed in the early 2000s for use by SWAT teams and special forces in hostile situations usually involving terrorists and hostages. Its purpose is similar to that of the periscope rifle; it allows its operator to both see and attack an armed target without exposing the operator to counterattack.
The evolution of German military rifles is a history of common and diverse paths followed by the separate German states, until the mid-19th century when Prussia emerged as the dominant state within Germany and the nation was unified. This article discusses rifled shoulder arms developed in or for the military of the states that later became Germany; it excludes firearms of the Austrian Empire, except where they were used substantially by German troops.
The ZBD-04 or Type 04 is a Chinese infantry fighting vehicle. It bears some external resemblance to the BMP-3, particularly with regards to its turret and main armament; However, the chassis and internal subsystem possesses a different layout. The earliest prototypes received the designation ZBD-97. An improved version, ZBD-04A, is the vehicle currently in service and being produced.
The K-3 is an Armenian bullpup assault rifle chambered for 5.45×39mm ammunition with a selective fire system, selecting between semi-automatic mode, burst mode, and full automatic fire mode. Little is known about the production and variants of these firearms, as its production is veiled in secrecy, but it is evident they are being used by the Armenian Special Forces, as was displayed in the 2006 military parade. A new variant of the K-3 was unveiled to the public nearly a decade after its initial debut.
The PPS is a family of Soviet submachine guns chambered in 7.62×25mm Tokarev, developed by Alexei Sudayev as a low-cost personal defense weapon for reconnaissance units, vehicle crews and support service personnel.
Ordnance Factory Tiruchirappalli (OFT), also called Ordnance Factory Trichy, is a small arms factory operated by Advanced Weapons and Equipment India Limited based in Tiruchirappalli, Tamil Nadu, which was previously part of Ordnance Factory Board of the Ministry of Defence, Government of India. The company is headed only by an IOFS officer called General Manager (ex officio Additional Secretary to Government of India) who is the chief executive officer, responsible for the overall management of the company.