Misplaced Pages

#719280

25-567: The original AK-100 series rifles were introduced in 1994 and are categorized by all having black polymer handguards , folding polymer stocks , and use of AK-74M internal systems. Parts are highly interchangeable. Notably, while the pattern would imply that the AK-100 series rifle chambered for 5.45x39mm would be the AK-105, and that the 5.45 carbine would be the AK-106, the AK-105 designation skipped

50-477: A firearm to prevent unwanted direct contact with the barrel (e.g. accidental collision with surrounding objects or the user accidentally touching a hot barrel, which can lead to burns ). Moving coverings such as pistol slides , fore-end extensions of the gunstock / chassis that do not fully encircle the barrel, and the receiver (or frame) of a firearm itself are generally not described as barrel shrouds, though they can functionally act as such. In shotguns ,

75-884: A barrel and gas system assembly and iron sights line similar to that of the AK-74M /AK-100 rifle family. Improvements added from the AK-12 include Picatinny rails , a new pistol grip, a new adjustable buttstock and a new flash hider. They feed from 30-round magazines, and are compatible with drum magazines from the RPK and RPK-74. The models of the AK-200 series are: On 3 March 2019, Russia and India inaugurated Indo-Russia Rifles in Uttar Pradesh , India to produce AK-203 assault rifles. However, no contract had been signed then or rifles produced because of pricing disagreements. India signed

100-602: A chassis is a vehicle frame , the underpart of a motor vehicle , on which the body is mounted; if the running gear such as wheels and transmission, and sometimes even the driver's seat, are included, then the assembly is described as a rolling chassis . In the case of vehicles, the term rolling chassis means the frame plus the "running gear " like engine , transmission , drive shaft , differential , and suspension . The "rolling chassis" description originated from assembly production when an integrated chassis "rolled on its own tires" just before truck bodies were bolted to

125-458: A contract in August 2021 to directly import 70,000 AK-203 rifles from Russia. Russia and India on December 6, 2021, finally signed a contract on the delivery of over 600,000 7.62mm AK-203 assault rifles that will be produced on India's soil to the republic's Defense Ministry. Handguard A barrel shroud is an external covering that envelops (either partially or full-length) the barrel of

150-406: A heavy, rigid cabinet, while in other designs such as modern computer cases , lightweight covers or panels are attached to the chassis. The combination of chassis and outer covering is sometimes called an enclosure . In firearms, the chassis is a bedding frame on long guns such as rifles to replace the traditionally wooden stock , for the purpose of better accurizing the gun. The chassis

175-649: A niche role as a middle ground between the AK-74M and AKS-74U. Later Kalashnikov started offering the AK-107 / AK-108 / AK-109 (in order 5.45x39, 5.56x45, 7.62x39) models. Externally they are very similar to the AK-100 series (with some minor differences) and are offered in the same calibers. Internally they use a radically different gas system and incorporate the Balanced Automatics Recoil System (BARS). The AK-100M/AK-200 rifle family

200-534: A rise in popularity in the recent years. They work by only attaching to the firearm at one point (on the barrel nut by the upper receiver ) while the remainder of the handguard does not make contact with the barrel. This gives the impression that the handguard is "floating" around the barrel, hence the name. Because they void barrel warping, free-floating handguards have been known to increase accuracy between 0.5 and 0.75  MOA (0.15–0.2  mrad ) compared to their drop-in counterparts. Barrel warping occurs when

225-445: A thin, slim partial shroud known as a rib is often mounted above the barrel to shield away the mirage generated by barrel heat, which can interfere with aiming. Full-length barrel shrouds are commonly featured on air-cooled machine guns , where frequent rapid bursts or sustained automatic fire will leave the barrel extremely hot and dangerous to the user. However, shrouds can also be used on semi-automatic firearms , especially

250-401: A variety of other attachments. Handguards are typically available as two types. The first has a contact point at the base of the barrel and a predetermined length up the barrel. They are typically made of polymer if they are this brand but can be made of different types of alloys. If they have the two contact points they are considered to be a drop in handguard. The other type attaches around

275-409: Is usually made from hard metallic material such as aluminium alloy (and less frequently stainless steel , titanium alloy or recently magnesium alloy ) due to metals having superior stiffness and compressive strength compared with wood or synthetic polymer , which are commonly used in conventional rifle stocks. The chassis essentially functions as a more extensive pillar bedding, providing

SECTION 10

#1732780874720

300-590: The forend or forearm ) on firearms is a barrel shroud specifically designed to allow the user to grip the front of the gun. It provides a safe heat-insulated surface for the user's hand to firmly hold onto without needing to worry about getting burned by the barrel , which may become very hot when firing. It can also serve as an attachment platform for secondary weapons (such as an underslung M203 grenade launcher or M26-MASS ) as well as accessories such as bipods , tactical lights , laser sights , night-vision devices , foregrips (or handstops), slings and

325-405: The intermodal trucking industry, a chassis is a type of semi-trailer onto which a cargo container can be mounted for road transport. In an electronic device (such as a computer ), the chassis consists of a frame or other internal supporting structure on which the circuit boards and other electronics are mounted. In some designs, such as older ENIAC sets, the chassis is mounted inside

350-470: The 100 series 5.45 rifle (that already existed as the 74M,) and went straight to the 5.45 carbine. Despite the AK-100 series being built off the AK-74M, rather than the 74M being the start of the series as the AK-100 or the AK-101, they decided that they would keep its name, and instead skip "AK-100" and attribute AK-101 to a completely different rifle. Additionally, there is no AK-106. This is likely to separate

375-544: The U.S. defines the design standards of chassis and body conversions. An armoured fighting vehicle 's hull serves as the chassis and comprises the bottom part of the AFV that includes the tracks , engine, driver's seat, and crew compartment. This describes the lower hull, although common usage might include the upper hull to mean the AFV without the turret . The hull serves as a basis for platforms on tanks , armoured personnel carriers , combat engineering vehicles , etc. In

400-452: The barrel but does not make contact with it directly. That particular type of handguard is, the majority of the time, made out of some form of aluminum or aluminum alloy. That allows for what is considered a free-floating barrel. Free floating barrels are known to have greater accuracy than their counterparts that have drop in hand guards. They also use a number of mounting systems, with the main ones being M-LOK , KeyMod , and Picatinny . In

425-454: The barrel. Force exerted onto the handguard is not transferred to the barrel, which allows for an increase in accuracy. Chassis#Firearms A chassis ( US : / ˈ tʃ æ s i / , UK : / ˈ ʃ æ s i / ; plural chassis /- i z / from French châssis [ʃɑsi] ) is the load -bearing framework of a manufactured object, which structurally supports the object in its construction and function. An example of

450-463: The context of melee weapons, a "handguard" refers to the crossguard (also known as the quillons or crosstree), the enlarged front part of a sword , saber or knife / dagger 's hilt , which protects the wielder's hands from an opponent's blade sliding towards the hilt or prevents the wielder's own hand and fingers from accidentally slipping onto the blade when stabbing . Free-floating handguards, also referred to as "floating" handguards, have seen

475-450: The frames near the end of the line. An underbody (sometimes referred to as " coachwork "), which is usually not necessary for the integrity of the structure, is built on the chassis to complete the vehicle. For commercial vehicles , a rolling chassis consists of an assembly of all the essential parts of a truck without the body to be ready for operation on the road. A car chassis will be different from one for commercial vehicles because of

500-519: The handguard makes contact with the barrel, which then slightly alters the barrel's angle, reducing accuracy. This can occur when a rifle is propped up against a surface or with a bipod . Force exerted onto the handguard pushes back up against the barrel, which deflects the barrel, reducing accuracy. The angle may seem insignificant; however, even a slight deviation can cause the shot to dramatically deviate down range. Free-floating handguards do not suffer from barrel warping as they do not make contact with

525-561: The handguard possesses 4 rails instead of two, with a rail on the top of the dustcover, which is hinged. Overall, it is considerably designed to use modern optics compared to it's predecessor. As of 2018, the AK-200 series rifles are offered for export sales and for domestic law enforcement users in Russia. The AK-200 series are based on the AK-100 series and the AK-12 . They can be chambered in 5.45×39mm , 5.56×45mm NATO and 7.62×39mm , and use

SECTION 20

#1732780874720

550-415: The heavier loads and constant work use. Commercial vehicle manufacturers sell "chassis only", "cowl and chassis", as well as " chassis cab " versions that can be outfitted with specialized bodies. These include motor homes , fire engines , ambulances , box trucks , etc. In particular applications, such as school buses , a government agency like National Highway Traffic Safety Administration (NHTSA) in

575-586: The ones with light-weight barrels, as even a small number of shots can heat up a barrel enough to injure the user in certain circumstances. Barrel shrouds are also used on pump-action shotguns . The military trench shotgun features a ventilated metal handguard with a bayonet attachment lug. Ventilated handguards or heat shields (usually without bayonet lugs) are also used on police riot shotguns and shotguns marketed for civilian self-defense. The heat shield also serves as an attachment base for accessories such as sights or sling swivels. A handguard (also known as

600-618: The versions using the BARS system, to make it clear that while they are 100 series rifles overall, they are somewhat their own subseries, however it could be possible that the AK-74M could have the alternative designation of AK-106 Even with those differences all of the rifles are made to similar specifications. Rifles in the 100 series have been exported to and/or adopted by a variety of countries, notably: Armenia, Cyprus, Serbia, Syria, Uruguay, Iran, Pakistan, Saudi Arabia, Indonesia, and Venezuela. The AK-105 has also seen some domestic use, filling

625-525: Was initially conceived around 2009 as an improved variant of the basic AK-100 series. The development of the AK-100M/AK-200 family was stopped around 2011 but resumed around 2016. In 2017, Kalashnikov unveiled the modernized versions of the AK-100 family of rifles. Main key takeaways compared to the AK-100 variants is the additional picatinny rails, accurized barrel, improved flash hider device, pinned barrel components instead of pressed in. Additionally,

#719280