Roll pin wear [Archive] - Glock Talk

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skt4271
11-09-2011, 00:24
Wondering if these marks are normal wear marks, or is some thing off. The weapon functions fine, just dont want to have premature wear.

http://i15.photobucket.com/albums/a357/skt4271/IMAG1905.jpg
http://i15.photobucket.com/albums/a357/skt4271/IMAG1907.jpg
http://i15.photobucket.com/albums/a357/skt4271/IMAG1906.jpg

faawrenchbndr
11-09-2011, 03:17
Normal,......I've always had a spare cam pin ot two in the range box.
I've never seen one shear,........yet.

skt4271
11-09-2011, 09:47
Should I lube it more?

MStarmer
11-09-2011, 09:50
It's one of the main places to run "wet". Google some of the maint docs for AR-15's or look for the "keep it running" done by swat mag. I posted a link to it in another thread I think.

found it;

www.ar15.com/content/swat/keepitrunning.pdf

JBaird22
11-09-2011, 16:26
The correct nomenclature is "cam pin" and those marks are normal. Shoot enough and a line will form where the bolt pivots on the cam pin.

skt4271
11-17-2011, 21:18
yeah i was wondering if i should worry about getting the BCG too wet. i was worried it would affect my firing pin.

american lockpicker
11-17-2011, 22:16
I run mine soaked and it functions fine. I clean it every 90 rounds or so.

crazymoose
11-17-2011, 22:37
Assuming that's the POF roller cam pin, or something like it. The normal cam pins are wear items that should be replaced every few thousand rounds. Don't know what the lifespan is like for this type of pin, but it's a part that takes a lot of stress, so wear is to be expected. And yes, keep it lubed. It's one of the parts on the AR that needs lubing the most.

faawrenchbndr
11-18-2011, 03:00
yeah i was wondering if i should worry about getting the BCG too wet. i was worried it would affect my firing pin.


It can not be over lubed,.......the BCG will expell what it does not need.

cciman
11-18-2011, 17:18
I'd wait to at least 97.

No seriously, 497, maybe 897... Piston.

Silicone grease works well too, does not dry, thin, or burn off.


I run mine soaked and it functions fine. I clean it every 90 rounds or so.

skt4271
11-18-2011, 20:24
Assuming that's the POF roller cam pin, or something like it. The normal cam pins are wear items that should be replaced every few thousand rounds. Don't know what the lifespan is like for this type of pin, but it's a part that takes a lot of stress, so wear is to be expected. And yes, keep it lubed. It's one of the parts on the AR that needs lubing the most.

yea, its a POF, i'm a recrea shooter so i only shoot every other saturday. hell even less now its cold. i guess i should have a couple spares.

I'd wait to at least 97.

No seriously, 497, maybe 897... Piston.

Silicone grease works well too, does not dry, thin, or burn off.

yea its a piston, i like that is easy to clean. mostly wipeable, but i clean clean it anyway.