Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Site Notices
Posted: 9/24/2004 7:03:59 PM EST
[Last Edit: 9/24/2004 7:05:07 PM EST by NYPatriot]
I ask because I might be experiencing an unusual wear pattern & I would like to see what the ineterior of your well used but fully functional upper receiver looks like.

Thanks.
Link Posted: 9/24/2004 10:27:40 PM EST
Link Posted: 9/24/2004 11:14:09 PM EST
Give the people some time to respond. After all you did post this at midnight on a Friday night. Some people actually have lives and are out having fun Unfortunatly I'm not one of them
Link Posted: 9/24/2004 11:35:39 PM EST
Link Posted: 9/25/2004 7:22:08 AM EST
[Last Edit: 9/25/2004 7:26:33 AM EST by NYPatriot]
Dragonfly228, thanks very much for taking the time to take & post that pic!

If you get the chance however, could you post a similar pic with the charging handle removed & an emphasis on the area fore & aft of the cam pin notch?

I'll be your best friend!

Thanks again
Link Posted: 9/25/2004 7:32:46 AM EST
Patriot,
How about taking a pic of your's and the area you're refering to so we can see what s going on in your gun.
George
Link Posted: 9/25/2004 8:09:52 AM EST
This is like really dirty, Hustler style gun porn ...
Link Posted: 9/25/2004 8:52:39 AM EST
Does this help any?



Bushmaster M4A3
Link Posted: 9/25/2004 9:28:29 AM EST
If you are talking about the removal/smoothing out of aluminum prior to and just after the cam pin notch you are fine. I will try and take a picture of one of my well broken in rifles to show you what I mean. My newest rifle has developed this wear yet and because of it the action is very rough still.
Link Posted: 9/25/2004 10:18:01 AM EST
NYPatriot

Thank you giving me an excuse to clean up my rifles.

Heres few pics of my Bushmaster M4. Round count is between 6500- 7000.

MN



Link Posted: 9/25/2004 7:25:20 PM EST
Thanks for the pics guys! I would post pics of my AR's wear spots, but my wife's digital camera is on the blink.

What disturbs me is that while small in size, my marks are down to the bare Aluminum after relatively little use.

They are in the same location as the wear in the pics, but I am experiencing more than just a smoothing out of Aluminum. The anodizing has worn away & I am looking at unprotected base metal.

I'm not sure if this wear is self-limiting or if it will continue.

What is causing this... an out of spec. bolt carrier or receiver?


Link Posted: 9/26/2004 4:47:07 AM EST
[Last Edit: 9/26/2004 5:40:05 AM EST by AlaskaJohn]

Originally Posted By NYPatriot:
Thanks for the pics guys! I would post pics of my AR's wear spots, but my wife's digital camera is on the blink.

What disturbs me is that while small in size, my marks are down to the bare Aluminum after relatively little use.

They are in the same location as the wear in the pics, but I am experiencing more than just a smoothing out of Aluminum. The anodizing has worn away & I am looking at unprotected base metal.

I'm not sure if this wear is self-limiting or if it will continue.

What is causing this... an out of spec. bolt carrier or receiver?




http://homepage.mac.com/mshadwick/imgs/6500+_rds_3a.jpg

I had an AR10 that showed this type of wear, only much worse. It was caused by numerous failure to extract problems. These FTEs caused a spent case to be jammed between the receiver and an unfired cartridge from the mag. This caused premature rotation of the cam pin as the bolt struck the jammed cartridges.
Link Posted: 9/26/2004 5:21:30 AM EST
If Im getting this right ... Your seeing wear at the milled out cam pin rotation area in the upper. While I truely don't think it's an issue, I really don't know that it isn't . But most all my AR's have alittle wear there and a few with it worn down to the bare metal. It's aluminum,,,, It's not going to rust...... CLP and keep going... WarDawg
Link Posted: 9/26/2004 6:08:59 AM EST
Every AR/M16 in the world has those wear areas, and they start showing up after a couple of hundred rounds. And yes, it goes down to the bare metal. And yes, after it gets to a certain point, it doesn't get any worse. And yes, forget about it.
Top Top