buffer damage

[89LT1]

i was inspecting my ar the other day and taking things apart to inspect all the parts and i noticed some interesting things about my buffer.

first the roll pin that hold the plastic end cap on was about half way out and was dragging on the spring. I used a punch to put the pin back inside the buffer but i am wondering if this is normal (i dont think it is)? and how to keep it from happening again?

the other issue is the plastic cap looks like it was smacking the rear of the buffer tube pretty hard and is "mushrooming" for a lack of better term where it meets the metal body of the buffer. Is this normal? its a 16" barrel with carbine gas system and carbine buffer.



Thanks for the help guys

[blkside]

Make and weight of buffer
What setup is your AR...

[jkody]

Buffer is wasted. The question is.....Why?

[ScottsBad]

If I were you, I'd buy a new spring. You might also want to buy a new buffer too. That one looks like it might come apart.

Is it an A2 system? Looks a little like the buffer is beating the end of the receiver extension? How many rounds do you have on the rifle? There are a number of things that could be going on.

Assuming all the parts are correct. The spring and buffer need replacement. But the rifle could be over gassed due to gas port erosion.

[89LT1]

not sure on the make and weight of the buffer, it came with the assembled rifle. the ar is .223/5.56. and i have maybe 1k rounds through it max.

i havent touched anything on the internals of the rifle.

[Junkie]

I imagine the gun is overgassed. I'd say pretty much all commercial guns are. Overgassing means it'll be more reliable when running cheap low power ammo, Wolf etc, as well as run better when dirty. The downside is more recoil and more wear on the gun.

What have you been shooting? If it runs well on crappy ammo it'll take some abuse on good, higher power, ammo.

An adjustable gas block might help.

[89LT1]

i ran about 500 rnds of Remington 223 and about 500 rnds of federal XM193

[IPSICK]

What stock and buffer tube are you using?

[bohoki]

i prefer the ones with the yellowish polyurithane tips is that one of them $8 ebay buffers?

[89LT1]

What stock and buffer tube are you using?

M4 milspec stock. I dont recall seeing a brand on it but ill check. i know there is no brand on the buffer.

[Junkie]

i ran about 500 rnds of Remington 223 and about 500 rnds of federal XM193

I'm certainly not an expert but my best guess is that your rifle is overgassed. That means either a new barrel or an adjustable gas block.

[89LT1]

I'm certainly not an expert but my best guess is that your rifle is overgassed.

Thank guys im going to take it back to the manufacturer and see what they say.

[IPSICK]

M4 milspec stock. I dont recall seeing a brand on it but ill check. i know there is no brand on the buffer.

No worries, my question was more a "did you plug in the pc" type of question. Another similar question is can you post a full length pic of your buffer to make sure it is carbine not rifle? Otherwise, seems like a faulty spring and/or buffer. It would have to be severely overgassed if the spring and buffer were good to go to begin with.

[Ninety]

What about getting a heavier buffer? New spring.. maybe a little more stout and try to tune the rifle that way. Could go adjustable gas block as well.
Where is your brass ejecting at? Ar15barrels.com has some good info on the subject.

Sent from an electronic tracking device

[NewbieDave]

Rifle buffer & spring (TOP) = A2 full stock
Carbine buffer & spring (BOTTOM) = collapsible stock


Do you have the right buffer/spring in right stock?


dpc