Editing Bolt action (section)

== Operating the bolt ==
Typically, the bolt consists of a tube of metal inside of which the firing mechanism is housed, and which has at the front or rear of the tube several metal knobs, or "lugs", which serve to lock the bolt in place. The operation can be done via a [[rotating bolt]], a lever, cam action, a locking piece, or a number of systems. Straight pull designs have seen a great deal of use, though manual turn bolt designs are what is most commonly thought of in reference to a bolt-action design due to the type ubiquity. As a result, the bolt-action term is often reserved for more modern types of rotating bolt designs when talking about a specific weapon's type of action. 

However, both straight pull and rotating bolt rifles are types of bolt-action rifles. [[Lever-action]] and [[pump-action]] weapons must still operate the bolt, but they are usually grouped separately from bolt-actions that are operated by a handle directly attached to a rotating bolt. Early bolt-action designs, such as the [[Dreyse needle gun]] and the [[Mauser Model 1871]], locked by dropping the bolt handle or bolt guide rib into a notch in the [[Receiver (firearms)|receiver]], this method is still used in [[.22 rimfire]] rifles. The most common locking method is a rotating bolt with two lugs on the bolt head, which was used by the [[Lebel Model 1886 rifle]], [[Model 1888 Commission Rifle]], [[Mauser M 98]], [[Mosin–Nagant]] and most bolt-action rifles. The [[Lee–Enfield]] has a lug and guide rib, which lock on the rear end of the bolt into the receiver.

=== Bolt knob ===
The bolt knob is the part of the bolt handle that the user grips when loading and reloading the firearm and thereby acts as a [[cocking handle]]. On many older firearms, the bolt knob is welded to the bolt handle, and as such becoming an integral part of the bolt handle itself. On many newer firearms, the bolt knob is instead threaded onto the handle, allowing the user to change the original bolt knob for an aftermarket one, either for aesthetical reasons, achieving better grip or similar.<ref name="Shooting Illustrated 2012">{{cite web | title=Get a Handle on It | website=Shooting Illustrated | date=17 August 2012 | url=https://www.shootingillustrated.com/articles/2012/8/17/get-a-handle-on-it/ | access-date=12 April 2021}}</ref> The type of threads used vary between firearms. European firearms often use either M6 1 or M8 1.25 threads, for example M6 is used on the [[SIG Sauer 200 STR]], [[Blaser R93]], [[Blaser R8]], CZ&nbsp;457<ref name="area419"/> and Bergara rifles,<ref name="area419">{{cite web | title=419 Bolt Knobs – Area 419 | website=Area 419 – Precision Comes Standard | date=29 September 2016 | url=https://www.area419.com/product/419-bolt-knob/ | access-date=12 April 2021}}</ref> while M8 is used on the [[Sako TRG]] and [[SIG Sauer 404]]. Many American firearms instead use 1/4" 28&nbsp;TPI (6.35 0.907&nbsp;mm) or 5/16" 24&nbsp;TPI (7.9375 1.058&nbsp;mm) threads. Some other thread types are also used, for example, No. 10 32&nbsp;TPI (4.826 0.794&nbsp;mm) as used by Mausingfield.<ref name="area419"/> There also exists aftermarket slip-on bolt handle covers which are mounted without having to remove the existing bolt handle.<ref name="Pandemic 2016">{{cite web | last=Pandemic | first=Major | title=Review: KRG Remington Action Bolt Lift Oversized Bolt Handle Knob | website=AllOutdoor.com | date=18 October 2016 | url=https://www.alloutdoor.com/2016/10/18/review-krg-remington-action-bolt-lift-oversized-bolt-handle-knob/ | access-date=12 April 2021}}</ref> These are often made of either rubber or plastic.