What is the button on the side of an AR for?

Author

William Brown

Updated on March 08, 2026

The forward assist on a firearm is a button found commonly on AR-15 rifle derivatives, such as the M16 rifle, and is usually located near the bolt closure. When hit, it pushes the bolt carrier forward, ensuring that the bolt is locked.

.

Similarly, you may ask, what does the button on the side of an m4 do?

Yes, it's the forward assist. You push it, and it forces the bolt into battery, ie, the ready to fire position. Sometimes a cartridge will not go all the way forward the first time, so hitting the forward assist will ram it home.

Similarly, what does a charging handle do on an AR? The CHARGING HANDLE is what load and cocks the rifle. In an AR15/M16/M4 - and ONLY in those - its as you correctly wrote placed on the back above the butt and buffer tube of the rifle. You pull it all the way back, release it, and the rifle if its properly maintained let the bolt move all the way forward.

Keeping this in consideration, do you need a forward assist on an AR?

As originally designed, and on purpose, the M16/AR-15 did not have an external forward assist. Stoner didn't want the M16 to have an external forward assist because he saw no need for it. To seat the bolt without a forward assist, use a finger — or thumb for left-handed shooters — of the support hand to lock it in.

How important is a forward assist on an AR 15?

The forward assist is one of the features we've come to expect on the AR-15 and its multitude of clones. If powder fouling or other matter prevented the bolt from going completely into battery, the forward assist could be used to force the round into the chamber and the bolt into its firing position.

Related Question Answers

Why does my AR 15 Jam?

AR-15 malfunctions may be due to an irregularity in the performance of the rifle itself, the magazine used to deliver ammunition to the rifle or a problem with the ammunition itself. The most common AR-15 malfunctions are: failure to feed, failure to fire, short stroke, failure to eject, and failure to extract.

What is the bolt release on an AR 15 for?

The function of the bolt catch is to stop the bolt's travel when pushed upward by the follower of an empty magazine. This enables the bolt to be locked to the rear after expending a magazine so that a new one can be inserted and the bolt catch slammed home to re-engage your target.

Does the military still use the m16?

The M16 is still in use, technically. The popular M4 carbine is a variation of the original M16, which is the military designation for the Armalite 15 rifle. The main difference is the shorter barrel length (16" versus 20"), grenade launcher cutout on the barrel (M4 barrel), and collapsible stock.

When was m16 made?

1964,

How does an AR 15 work?

The AR-15 fires from a locked bolt, meaning that when a cartridge is chambered, the bolt closes behind the case and rotates 15 degrees: the lugs on the bolt head engage the protrusions on the barrel extension, solidly locking the bolt in place, so it can withstand the high pressure produced by powder combustion.

What does the forward assist do on an airsoft gun?

The forward assist is to make sure the bolt makes it all the way forward, as sometimes, there isn't enough power coming from the buffer and buffer spring to move the bolt all the way forward. Many variables can play into it, such as dirty ammo, non round casings (ie bent, crushed etc).

How does a bolt catch work?

How does a bolt catch work? It is a lever that engages a lock on the bolt which the bolt from going back into battery. An automatic one is activated when the follower (The thingy that pushes the cartridges up) of an empty magazine pushes the catch into a notch on the bolt like on the AR series.

What's the point of a forward assist?

A forward assist is used to slam bolt carrier groups closed. To actuate it, you slap, press or otherwise hit the button on the forward assist assembly. This moves the bolt forward.

Is a dust cover necessary for an AR 15?

Obviously an AR doesn't NEED a foward assist, or dust cover to function. It also doesn't need the brass deflector.

What is a non reciprocating charging handle?

A reciprocating charging handle gives the user total control over the movement of the bolt and bolt carrier, and allows a lot of force to be used to chamber or extract stubborn or ruptured cartridges. With a non-reciprocating charging handle you can typically only exert rearward pressure on the bolt carrier and bolt.

Do charging handles make a difference?

Is there any difference at all between charging handles? If your just comparing standard milspec charging handles there likely is no difference. But some charging handles have extended latches or ambidextrous latches. Most of the more expensive handles like BCM, Rainer, etc.

Are all AR charging handles the same?

Both are ok. Unless the AR in question is using proprietary receivers or has been redesigned (ie side-charging), then yes AR-15 charging handle is pretty much a universal part that is interchangeable with any rifle that is MILSPEC or uses MILSPEC dimensions.

Should I upgrade my charging handle?

Why You Should Upgrade Your AR-15 Charging HandleMost AR-15s come standard with a mil-spec charging handle, which is fine if you just use your rifle for a casual day of shooting at the range. However, if you do more prolonged shooting activities, a regular charging handle may not be up to snuff.

What does it mean to charge a weapon?

The term weapons charge globally refers to a broad set of charges that involve weapons. Most state statutes are divided into two categories of weapon charges: possession and use. A defendant can be charged and convicted of possessing an illegal weapon, even though no one was hurt, threatened, or even saw the weapon.

What is a charging handle on a gun?

The cocking handle, also known as charging handle or bolt handle, is a device on a firearm which, when operated, results in the hammer or striker being cocked or moved to the ready position. It allows the operator to pull the bolt to the rear.

Does the charging handle move when firing an AR?

The bolt is this thing here that moves back and forth when the gun is fired. The bolt will not be visible if the ejection port cover is closed. To do that, sharply pull the charging handle to the rear as far as it will go. If there's a round in the chamber, it should come out when you do this.

What is cocking a rifle?

Cocking a gun will cycle a round into the chamber. It also pushes the hammer back, making and easier trigger pull. cocking a gun means pulling the hammer back, where it is held. The gun is then said to have a hair trigger since it usually takes much less force to pull the trigger and fire the gun at that point.

What is a bolt carrier group?

The AR-15 bolt carrier group, or BCG, is a critical and often misunderstood piece of the AR-15/M16 upper receiver. As the bolt carrier moves rearward, it acts on the cam pin, which twists the bolt. This unlocks it from the chamber allowing the BCG to cycle rearward.

How does a bolt action rifle work?

Bolt action. One or more lugs at the front or rear of the bolt (or at both) fit into slots in the receiver and lock the bolt firmly in place against the base of the cartridge chamber when the rifle is to be fired. As the bolt is thrust forward, it pushes a cartridge into the chamber and cocks the piece.

Related Documentation

What animal eats banana?

How do you do laws of exponents?

What does e mean on 3g?

What time period is Coraline set in?