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Posted: 3/13/2012 7:57:51 AM EDT
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There's been discussion about cam pin wear. Vendors have presented various solutions to address it.
Any opinions on the following? 1) Meh...their $5 bucks. Just buy a few and replace when needed. http://www.bravocompanyusa.com/Cam-Pin-AR15-p/Cam%20Pin%20AR15.htm 2) Smith Enterprise Hard-Chromed and heat treated.....$30 http://www.brownells.com/.aspx/sid=31084/pid=41508/Product/AR-15-M16-CAM-PIN?utm_medium=shoppingengine&utm_source=googlebase&mc_id=10000&gdftrk=gdfV21820_a_7c187_a_7c3466_a_7c851111003_d_851111003_d_10943 3) DPMS Titanium Nitride coated.....$13 http://www.midwayusa.com/product/929404/dpms-bolt-cam-pin-ar-15-tin-titanium-nitride-coated 4) POF Roller Cam Pin......$25 http://www.pof-usa.com/parts/arparts.htm |
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 http://www.youtube.com/watch?v=85ZPgy6Ffxg&list=UUZ5-oPuzS3jWcnLGRZkgPmQ&index=1&feature=plcp
Our Roller Cam Pin works great in our 12.5" full auto P308-FA (.308 / 7.62x51)  Well, I know what I am getting once I move to a free state. Very nice rifle. |
I just found out the hard way that they will not. 
I ordered one from Ranier, along with a bunch of other odds & ends. The "roller" will not clear the operating rod (duh  ) It's close, and I was tempted to try and force it past. Then I realized I'd never get it out again. (double-duh)
It says "Works with POF-USA and Gas Piston AR15/M16 Rifles" on the instruction sheet, but you obviously need a carrier with just the strike face and no key/rod attached. Next time I'll do a little more reasearch, at least it wasn't an expensive item. Don't place orders, and install new parts, late-at-night, after a 12-hour workday in the sun! |
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Go POF roller cam pin and never look back I'll throw 2 reasons for this:
1st- On DI Guns you got the gas ring blocking the gas from escaping and expanding inside the chamber and pushing the bolt carrier rearward and the bolt forward, smoothly unlocking the action. On Piston Guns is just a big slam on the bolt carrier and the bolt is been drag back wearing the locking lugs. The POF roller cam pin smoothen the action and makes to bolt not to follow the bolt carrier while is moving the first few critical millimeters to the rear. 2nd- The AR15 is by nature a self stopping system, which can incur in reliability problems, however the POF roller cam pin, solves this problem by making the system not self stopping More info about this you can check it here http://www.youtube.com/watch?v=6JmIQXkoog8 |
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Go POF roller cam pin and never look back I'll throw 2 reasons for this: 1st- On DI Guns you got the gas ring blocking the gas from escaping and expanding inside the chamber and pushing the bolt carrier rearward and the bolt forward, smoothly unlocking the action. On Piston Guns is just a big slam on the bolt carrier and the bolt is been drag back wearing the locking lugs. The POF roller cam pin smoothen the action and makes to bolt not to follow the bolt carrier while is moving the first few critical millimeters to the rear. 2nd- The AR15 is by nature a self stopping system, which can incur in reliability problems, however the POF roller cam pin, solves this problem by making the system not self stopping More info about this you can check it here http://www.youtube.com/watch?v=6JmIQXkoog8 You must believe everything to read/watch on the Internet. Really, "a self stopping system."? How then do you explain 50+ years of service? Don't buy into hype, especially from someone that is clearly biased (he says the AK is the prototypical). Both the AK and AR have pros and cons but the debate over which is better is purely a religious debate. |
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You must believe everything to read/watch on the Internet. Really, "a self stopping system."? How then do you explain 50+ years of service? Don't buy into hype, especially from someone that is clearly biased (he says the AK is the prototypical). Both the AK and AR have pros and cons but the debate over which is better is purely a religious debate. Come on.  Have you done the test!
I have and indeed there is a lot of friction, add mud and some nasty stuff and the rifle will simple fail to return to battery. Yes you could say, use the forward assist. But do you want a rifle to go BANG, BANG NOTHING? It could happen in the worst moment and you won't realize it until you need the shot. The solution is simple and cheap, and is amazing how it solve this problem. 
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Come on.
Have you done the test!I have done every test on the AR platform that I feel I ever will need to. This 'test' is BS by someone looking to make a point that doesn't exist in reality. If you feel the AR is an inferior platform then why are you here? Why are you using an AR in your attached photo? I'm going to give you the benefit of the doubt of not recognizing what my avatar suggests, but I'll enlighten you enough... I KNOW the AR platform. I've used it in the worst possible conditions. I have had a failure which had nothing to do with the BCG and Cam Pin in the worst possible circumstances. But I still trust my life to this platform. |
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Come on.
Have you done the test!I have done every test on the AR platform that I feel I ever will need to. This 'test' is BS by someone looking to make a point that doesn't exist in reality. If you feel the AR is an inferior platform then why are you here? Why are you using an AR in your attached photo? I'm going to give you the benefit of the doubt of not recognizing what my avatar suggests, but I'll enlighten you enough... I KNOW the AR platform. I've used it in the worst possible conditions. I have had a failure which had nothing to do with the BCG and Cam Pin in the worst possible circumstances. But I still trust my life to this platform. .....Rengar look at his post as nothing more: 
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I like my POF roller cam pin. It is holding up and the design makes sense to me. It also seemed to make is cycle smoother. yup Same here. My brothers di gun has all kinds of dings and scratches inside the receiver. With my cam pin from POF the Inside of the receiver looks new. I know that doesn't matter much but man the damn thing looks like it hasn't fired a round. Over 1k through my Stag M8. |
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I have done every test on the AR platform that I feel I ever will need to. This 'test' is BS by someone looking to make a point that doesn't exist in reality. If you feel the AR is an inferior platform then why are you here? Why are you using an AR in your attached photo? I'm going to give you the benefit of the doubt of not recognizing what my avatar suggests, but I'll enlighten you enough... I KNOW the AR platform. I've used it in the worst possible conditions. I have had a failure which had nothing to do with the BCG and Cam Pin in the worst possible circumstances. But I still trust my life to this platform. I don't think the AR is an inferior platform, but I think it is flawed. Last time I check we are on AR PISTON FORUM. So you could also argue that 50+ years of service means that piston ARs are also a hype. Here our standard issue rifle are Galil SAR so maybe I'm a bit biased and want my AR to have the kind of reliability that my Galil has, that's why the piston and pof roller cam pin. I don't understand your arguments really, you could use exactly the same arguments on DI v/s PISTON. If you think a cheap insurance like adding a POF roller cam pin is worthless, well that's ok. But I'm just giving you the reasons why one should add a roller cam pin, nothing more. Man I'm giving you a fact, the POF roller cam pin makes the BCG to be friction-less against the upper. I don't get why would you want to add friction to the upper, where it COULD induce with dirt and mud a FTRB, if you are ok with that FINE, Yes a tap or 2 to the FA will solve the problem, but I just don't want that kind of issue in the worst possible situation. |
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just remember this platform was gone over by # crunchers they did everything to make it cheap and still work, so that is what you get cheap and it works, these inexpensive upgrades just make it work a little better for a little longer
if stock out of the box was the best there would be no trucks with big tires, cars with headers and loud mufflers , aftermaket roller cams, high performance intakes, in a way cars are the same they are built as cheap as possible but still work, it is up to the end user to decide what they want to get out of it all in all I would say in alot of aspects of firearms technology have greatly advanced sine this platforms inception |
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Just get a spare or two from BCM. I doubt I'd shoot enough to wear all of them out in my lifetime. Both my CMMG and my S&W exhibit similar wear after roughly 3,000 rounds a piece. They seem to wear to a point and then stop. This. I've had more problems with carrier tilt than cam pin gouging. |
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just remember this platform was gone over by # crunchers they did everything to make it cheap and still work, so that is what you get cheap and it works, these inexpensive upgrades just make it work a little better for a little longer if stock out of the box was the best there would be no trucks with big tires, cars with headers and loud mufflers , aftermaket roller cams, high performance intakes, in a way cars are the same they are built as cheap as possible but still work, it is up to the end user to decide what they want to get out of it all in all I would say in alot of aspects of firearms technology have greatly advanced sine this platforms inception I have to say I agree with this statement. At the end of the day it's your money and your life do what makes you happy and fuck everyone else right? |
| WELL I did order one to try out but seems it is to late since I just noticed the cam pin aldready gouged the inside of my brand new np3 coated upper after only a few hundred rounds, my entire bcg is fail zero coated , I looked in the old upper and same thing, i run the ops 416 fz model |
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