Nope. Lurk the M4carbine board. NiB bolts are susceptible to hydrogen embrittlement and can have decreased cycles to failure compared to a good (BCM, Colt, LMT, Rainier, etc...) mil-spec bolt. I'll personally stick with mil-spec bolts. They're slightly more of a pain to clean, but I'll take that for the increased reliability.
Carriers.....Do whatever you want. Coat them in unicorn blood or whatever the current coating of the month is if you so desire. But a mil-spec carrier will run fine as well.
Nope. Another solution to a problem that doesn't exist.
Nope. Lurk the M4carbine board. NiB bolts are susceptible to hydrogen embrittlement and can have decreased cycles to failure compared to a good (BCM, Colt, LMT, Rainier, etc...) mil-spec bolt. I'll personally stick with mil-spec bolts. They're slightly more of a pain to clean, but I'll take that for the increased reliability.
Carriers.....Do whatever you want. Coat them in unicorn blood or whatever the current coating of the month is if you so desire. But a mil-spec carrier will run fine as well.
I have yet to see anything in unicorn blood..lol But I will be on the look out...lol
I never have that much trouble cleaning my standard phosphate-coated BCG's. I just spray the crap out of them with non-chlorinated brake cleaner and then re-lube with Slip 2000 EWL. The carbon fouling is just blasted right off and the gun runs great. I don't get too anal about scraping carbon off of the tail of the bolt like some do, though.
I look at it like some people put cheap tires on a car and some put the best they can find on a car. The bolt that is coated seems to run fine in the one I have it in and the standard ones do too. The only advantage I see is it's easer to clean and it seems to run smoother than the standard B.C.G.. If you prefer it slides better or smoother than the non coated ones. I also plan to buy one of the ultra light B.C.G. that are coated to see how they work.
I don't think any one said that there was ever a problem with the old style B.C.G. it is just that people try and improve on anything that is over fifty years old. In the past fifty years there is so many coatings that have come out. One has to be better than what was started with.
If you feel that there is no reason for improvement on the AR then don't buy the stuff that comes out. Then you might want to drive the old model A. You know no AC, very little power and the ride is like riding in a buggy. I don't see anyone complaining about improving on it. So why shouldn't the AR be improved on?