Cocking handle

Source: Wikipedia, the free encyclopedia.
Charging handle being pulled on an M2 machine gun

The cocking handle, also known as charging handle or bolt handle, is a device on a firearm which, when manipulated, results in the

belt if required. By opening the breech, it also helps the operator to verify that the weapon's chamber is clear of any rounds or other obstructions; to clear a stoppage such as a jam, double-feed, stovepipe or misfire; to facilitate moving the bolt back into battery, acting as a forward assist (but not necessarily); and to release a bolt locked to the rear by a catching mechanism on a firearm equipped with a "last round bolt hold open" (LRBHO) feature.[1]

Colt/Armalite - T-shaped charging handle below and behind the rear sight, with the forward assist below and to the right

These devices vary significantly between firearms but may occur in the form of a small protrusion or hook from the side of the bolt, pump, or lever on manual repeating firearms. The slide on a pistol performs a similar action as a cocking handle.[2]

Cocking handle (below the sight) on an L85A2 (SA80 family)

In designing a cocking handle, both durability and ergonomics must be taken into account. When heavily used, repeated motion of the handle can lead to

protective equipment which may limit their dexterity. An example of this ergonomic design can be seen in the thumb grooves found on the cocking handles of the British SA80
family of rifles; these provide extra grip when charging the weapon, preventing the bolt from slipping out of the operator's grip before it is fully pulled back.

Cocking handles can be reciprocating or non-reciprocating. The advantage of the former is that it gives the user complete control over the movement of the bolt and bolt carrier. It enables great force to be used to chamber or extract difficult or ruptured cartridges. However, it adds an extra, fast-moving part on the outside of the gun and may limit the way the gun is handled.[4]

See also

References

  1. ^ "How a Handgun Works: 1911 .45". AnimaGraffs. 14 December 2013. Retrieved 2015-08-06.
  2. ISBN 978-1-4402-0389-3.[permanent dead link
    ]
  3. ISBN 978-1-84603-225-7
    .
  4. ^ "What are the advantages of a reciprocating charging handle vs non-reciprocating?". Reddit Guns. Retrieved 2015-08-06.
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