AR-15 bolt question?


Usa007

New member
In the bolt carrier assembly what can go bad or get damaged?
 

weeniewawa

New member
you can break a firing pin, and extractor

most other parts are pretty strong but it is a good idea to keep some spares around, maybe even a complete bolt carrier assembly

extractors can break when using steel cased ammo like brown bear or wolf

other than that the springs in the extractor or ejector can wear out


all the small parts can be bought individually for around $5 each or sometimes in a kit that has all the breakable parts in it
 

Mobuck

New member
Multiple small parts all of which can break. Extractor (w/spring & pin), ejector(w/spring and pin), gas key screws can loosen, firing pin can break, cam pin(not usually a problem), bolt itself can break, gas rings can become dislodged or break. Carrier can become clogged with carbon.
 

SGB

New member
The Bolt carrier is pretty much bullet proof, it's the bolt that takes the brunt of wear and tear. A spare bolt is a must have in the spare parts box.

Not all bolts are equal either, stick to quality bolts like Bravo Co., Colt, LMT etc..........
 

Usa007

New member
I have a M&P I heard STag arms makes the parts for this rifle, where can I find spare parts for this?
 

Iteach4U

New member
In the bolt carrier assembly what can go bad or get damaged?

Everything....literally.

A bad gas tube can damage the gas keyway.
Improperly staked keways can come loose or break.
Firing pins can bend.
The retainer pins can break over time.
The extractor spring can wear out.
The extractor can wear or break, latter of the two least likely.
The gas rings can wear out or become out of stagger.
The BC itself can be damaged or scarred which may impede function.
Round overrides can cause a lot of problems and damage.
Charging/chambering the AR by simply pulling the charging handle and letting go can create big issues and round overrides. You should lock the bolt to the rear and use the bolt release. (know this all too well first-hand from my last deployment thanks to an idiot E-7)


Did I miss anything fellas? That's pretty much the learning curve for combat loud-out and combat environment cleaning issues we looked for.
 

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