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Posted: 6/18/2019 11:04:13 PM EDT
[#1]
All cam pins get wear on them. It’s normal. Post some pictures of your cam pins.
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Posted: 6/19/2019 12:45:43 AM EDT
[#2]
Cam pins wear into the carrier where they impact. It is normal and not something I'd replace. It is possible if you replace them, you just accelerate more wear on the carrier as the new ones break in.
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Posted: 6/19/2019 1:19:29 AM EDT
[#3]
I have and extremely overgassed MK18 barrel (recently re-ported with a BRT insert) that I also suppressed, and made the BCG move at lightning speeds. It would outrun the mag spring.
This culminated in some serious wear on my cam pin. Go figure. I though it would wear to a point, and stop, like all my other cam pins and carriers. Not this one. Anyhow, to answer your question, I went to Sionics and got a few of their NP3 coated pins. I am not into magical coatings, but I like how this thing is wearing. Not beating up my DD carrier, and all is well. For the relatively low price, why not? Good luck! |
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Posted: 6/19/2019 7:55:05 AM EDT
[#4]
Listen to Alaska.
NP3 or chromed pins (Eugene Stoner’s original AR-10 designs all used chromed BCGs). |
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Posted: 6/19/2019 10:56:14 AM EDT
[#5]
Quote HistoryQuoted:
Listen to Alaska. NP3 or chromed pins (Eugene Stoner’s original AR-10 designs all used chromed BCGs). At the time, I was unable to find chrome cam pins, so I went with the Sionics based on another member's experience with a similar issue. |
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Posted: 6/20/2019 11:01:26 AM EDT
[#6]
Recently scored a couple of these to refresh a few worn cam pins.
https://www.rainierarms.com/smith-enterprise-cam-pin/ A little spendy, but they make me feel warm inside. |
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Posted: 6/20/2019 4:01:19 PM EDT
[#7]
Quote HistoryQuoted:
Recently scored a couple of these to refresh a few worn cam pins. https://www.rainierarms.com/smith-enterprise-cam-pin/ A little spendy, but they make me feel warm inside. 
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Posted: 6/20/2019 8:00:10 PM EDT
[#8]
I recommend just a basic cam pin nothing fancy from Damage Industries
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Posted: 6/22/2019 10:55:44 PM EDT
[#9]
I bought a few from BCM as back ups, they look very similar to my colt cam pins.
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Posted: 6/29/2019 11:29:08 PM EDT
[#10]
The cam pin is the highest wear part of the entire system. You'll have deep gouge mark where it is riding the cam pin slot on the bolt carrier. The cam pin is responsible for a lot of things.
You'll likely never need the cam pin replaced or changed. It ought to last the entirety of the bolt's life. That is assuming you're shooting 5.56/.223 rounds and not something else. |
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Posted: 8/14/2019 3:37:53 PM EDT
[#11]
Long ago I cracked a bolt with the original cam pin. All the cam pins with all the finishes I have tried, wear. It is a different metal? Never have broken one and I have run on them pretty hard. i finally Quit worrying about the wear and keep some spares around if needed ( which I never had).
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Posted: 8/26/2019 7:35:05 PM EDT
[#12]
Cam pin metal is the softest ib BCG, I can't find any harder. The coated ones work better and don't wear as fast as jus parkerized does I have broken a few in the past. I think someone has a complete BCG made out of S7 tool but I haven't checked the specs on it.
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Posted: 9/30/2019 5:10:04 AM EDT
[#13]
Quote HistoryQuoted:
Cam pin metal is the softest ib BCG, I can't find any harder. The coated ones work better and don't wear as fast as jus parkerized does I have broken a few in the past. I think someone has a complete BCG made out of S7 tool but I haven't checked the specs on it. Sharps S7 Bolt and Carrier And if that Cam Pin is not good enough for you. This is your upgrade path but hardly worth the $Lantac Cam Pin |
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Posted: 9/30/2019 11:19:42 AM EDT
[#14]
That's all they'll do. GI cam pin is fine.
That Sharps BCG has a rep for breaking bolts.
LMT enhanced is the only upgrade worth buying, it actually addresses the 3 issues with Stoner's original design. Cam pin track, cam pin hole in bolt, and locking lugs. |
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Posted: 10/2/2019 9:51:23 AM EDT
[#15]
Quote HistoryQuoted: That's all they'll do. GI cam pin is fine. That Sharps BCG has a rep for breaking bolts. LMT enhanced is the only upgrade worth buying, it actually addresses the 3 issues with Stoner's original design. Cam pin track, cam pin hole in bolt, and locking lugs. |
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Posted: 11/3/2019 5:43:22 PM EDT
[#16]
Waste of money, GI is fine. Second the LMT enhanced.
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Posted: 11/3/2019 9:41:27 PM EDT
[#17]
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Posted: 11/4/2019 4:02:53 PM EDT
[#18]
Quote HistoryQuoted: I am all about the hard chromed BCGs. I only have 2, and absolutely love them. If I could afford to replace the other 8, I would. At the time, I was unable to find chrome cam pins, so I went with the Sionics based on another member's experience with a similar issue. The original specification was "Electrolized", or what is known as Thin Dense Chromium (TDC) today. |
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