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Posted: 8/28/2011 6:41:34 PM EDT
[#1]
AR Performance
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Posted: 8/28/2011 6:47:41 PM EDT
[#2]
DSA
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Posted: 8/28/2011 6:48:09 PM EDT
[#3]
Superior Barrels
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Posted: 8/28/2011 7:00:21 PM EDT
[#4]
Thanks for the responses. DSA seems to be the best value, although I am not sure which is better quality.
Didnt see any on the Superior Barrels site, unless that is what they call hard blue. |
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Posted: 8/28/2011 7:02:38 PM EDT
[#5]
It's just a type of nitriding. You can get nitrided barrels from LOKI also.
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Posted: 8/28/2011 9:42:45 PM EDT
[#6]
Which would be the preferred of the bunch?
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Posted: 8/29/2011 6:26:11 AM EDT
[#7]
CMMG?
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Posted: 8/29/2011 7:15:27 AM EDT
[#8]
Quoted:
Which would be the preferred of the bunch? Depends on what you are looking for. For non-standard caliber barrels, you would be hard pressed to do better than AR Performance. |
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Posted: 8/29/2011 7:59:23 AM EDT
[#9]
BCM has ion bonded barrels. Much better finish IMO.
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Posted: 8/29/2011 8:20:23 AM EDT
[#10]
Quoted:
BCM has ion bonded barrels. Much better finish IMO. How so? |
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Posted: 8/29/2011 9:54:52 AM EDT
[#11]
Quoted:
Quoted:
BCM has ion bonded barrels. Much better finish IMO. How so? 90 rockwell hardness - nearly impervious to scratching. Highly resistant to corrosion and galling. Natural lubricity. The finish becomes part of the barrel material itself; will not flake or peel off (it is actually a steel treatment and finish in one). The finished metal is only 5 microns thick - not enough to affect tolerances on the barrel with other parts (upper to barrel, gas block, muzzle device). Is also very uniform in appearance. Melonite (also known as tennifer as seen on Glock slides) is also a steel treatment but does not produce the hardness ion bonding does. It also does not change the color since it is only a steel treatment. Melonite treated parts generally require a finish over it such as black oxide or teflon. The downside is that ion bonding is more expensive than melonite. I am not saying that Melonite is bad, just that ion bonding has distinct advantages (aside from the cost). |
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Posted: 8/29/2011 10:38:15 AM EDT
[#12]
Quoted:
Quoted:
Quoted:
BCM has ion bonded barrels. Much better finish IMO. How so? 90 rockwell hardness - nearly impervious to scratching. Highly resistant to corrosion and galling. Natural lubricity. The finish becomes part of the barrel material itself; will not flake or peel off (it is actually a steel treatment and finish in one). The finished metal is only 5 microns thick - not enough to affect tolerances on the barrel with other parts (upper to barrel, gas block, muzzle device). Is also very uniform in appearance. Melonite (also known as tennifer as seen on Glock slides) is also a steel treatment but does not produce the hardness ion bonding does. It also does not change the color since it is only a steel treatment. Melonite treated parts generally require a finish over it such as black oxide or teflon. The downside is that ion bonding is more expensive than melonite. I am not saying that Melonite is bad, just that ion bonding has distinct advantages (aside from the cost). ION Bond is a coating, not so sure that is a good idea inside the bore. Melonite is a heat treat (70C) that does not add material to the surface it also turns the barrels black and does not need another treatment on top of that.. |
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Posted: 8/29/2011 11:00:22 AM EDT
[#13]
Quoted:
Quoted:
Quoted:
Quoted:
BCM has ion bonded barrels. Much better finish IMO. How so? 90 rockwell hardness - nearly impervious to scratching. Highly resistant to corrosion and galling. Natural lubricity. The finish becomes part of the barrel material itself; will not flake or peel off (it is actually a steel treatment and finish in one). The finished metal is only 5 microns thick - not enough to affect tolerances on the barrel with other parts (upper to barrel, gas block, muzzle device). Is also very uniform in appearance. Melonite (also known as tennifer as seen on Glock slides) is also a steel treatment but does not produce the hardness ion bonding does. It also does not change the color since it is only a steel treatment. Melonite treated parts generally require a finish over it such as black oxide or teflon. The downside is that ion bonding is more expensive than melonite. I am not saying that Melonite is bad, just that ion bonding has distinct advantages (aside from the cost). ION Bond is a coating, not so sure that is a good idea inside the bore. Melonite is a heat treat (70C) that does not add material to the surface it also turns the barrels black and does not need another treatment on top of that.. Ion Bond does not add enough material for it to matter (5 microns - 5 millionths of an inch). What is added becomes a permanent part of the metal. It reduces the coefficient of friction and increases hardness. I have not heard of it being used on the inside of a barrel - just the exterior finish. Having had both finishes on barrels, I am more impressed with the ion bonded finish. |
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Posted: 8/29/2011 11:03:12 AM EDT
[#14]
Quoted:
Quoted:
Quoted:
BCM has ion bonded barrels. Much better finish IMO. How so? 90 rockwell hardness - nearly impervious to scratching. Highly resistant to corrosion and galling. Natural lubricity. The finish becomes part of the barrel material itself; will not flake or peel off (it is actually a steel treatment and finish in one). You just described the Melonite/Tennifer/QPQ finish perfectly, although the hardness is around 70RC, which is nearly twice most barrel steels The finished metal is only 5 microns thick - not enough to affect tolerances on the barrel with other parts (upper to barrel, gas block, muzzle device). ION Bond IS a coating, albeit a thin one. Melonite is a surface treatment that causes no dimensional changes to the treated steel. Is also very uniform in appearance. This again is true of Melonite Melonite (also known as tennifer as seen on Glock slides) is also a steel treatment but does not produce the hardness ion bonding does. Not as hard, but way harder than barrel steel It also does not change the color since it is only a steel treatment. Incorrect Melonite treated parts generally require a finish over it such as black oxide or teflon. Also incorrect Can a bore even be Ion bonded? PVD type finishes cannot typically be applied in holes. Since they use a magnetic attraction to bring the treatment to the metal surface, there isn't a way to get the magnetically charged vapor down the tube without it migrating to the walls within the first couple of calibers. |
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Posted: 8/30/2011 11:25:19 AM EDT
[#15]
Quoted:
Quoted:
Which would be the preferred of the bunch? Depends on what you are looking for. For non-standard caliber barrels, you would be hard pressed to do better than AR Performance. Looking for melonited barrel inside and out, no chrome. 16" 1/7. AR Performance have good barrels? |
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Posted: 8/30/2011 3:47:56 PM EDT
[#16]
Quoted:
Quoted:
Quoted:
Which would be the preferred of the bunch? Depends on what you are looking for. For non-standard caliber barrels, you would be hard pressed to do better than AR Performance. Looking for melonited barrel inside and out, no chrome. 16" 1/7. AR Performance have good barrels? Excellent barrels. |
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