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Posted: 1/27/2014 7:42:25 AM EDT
[#1]
History of reliability. But I would use a Raineir Arms BCG or a Aim surplus BCG for that matter.
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Posted: 1/27/2014 8:01:51 AM EDT
[#2]
BCM pressure tests their bolts. Rainier does not.
Pricewise, BCM tends to dwell on being expensive. |
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Posted: 1/27/2014 8:09:01 AM EDT
[#3]
Quote HistoryQuoted:
BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. How I missed that I don't know. I'm running a Rainier bcg in my bcm upper. I picked it up when they were $100. |
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Posted: 1/27/2014 8:09:30 AM EDT
[#4]
BCM probably offers the more heavily used BCG in the industry. They are proven to work, last, and be reliable no matter what. Lots of torture tests out there on BCM's products. I've always relied on them and they have never failed me. QC is top notch.
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Posted: 1/27/2014 8:18:37 AM EDT
[#5]
The need for pressure testing has been debated here frequently over the past year or two. It'll decrease the bolts lifespan, but give reassurance on its ability to hold up to stress. I use both.
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Posted: 1/27/2014 8:33:21 AM EDT
[#6]
I've read some of those threads. I'm not really worried about HP on the bolt, hell my RRA bcg has lasted almost 5k rounds and their junk
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Posted: 1/27/2014 8:58:16 AM EDT
[#7]
Quote HistoryQuoted:
I've read some of those threads. I'm not really worried about HP on the bolt, hell my RRA bcg has lasted almost 5k rounds and their junk It would seem in the AR world that if something about and item could possibly be a little better but is not done to it that automatically qualifies it as junk. I wonder how many guys have spent double or triple on rifles when a lesser "junk" rifle would have suited their needs and lasted them a lifetime all because some elitist colored their opinion on things. Any way. I would trust a Rainier bcg no problem. They are a good company that will stand behind what they sell. Im waiting on one of their bcgs to come back into stock myself. I run bcm ATM. Bcm is bcm and that's why its in my rifle but I can't justify the cost for the amount I get to shoot these day. |
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Posted: 1/27/2014 9:14:52 AM EDT
[#8]
Quote HistoryQuoted: BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. |
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Posted: 1/27/2014 9:26:09 AM EDT
[#9]
The gas key on the rainier is MIM.
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Posted: 1/27/2014 9:29:58 AM EDT
[#10]
Quote HistoryQuoted:
The gas key on the rainier is MIM. Given that they spec everything out on the description for the BCG, I kind of doubt that. I'll message the guys at Rainier to pop in this thread. I've had 2 of their complete uppers including BCG that have run 1000%. Plus, they have a lifetime warranty on the BCG Gas key: Hard Chrome lined gas tube as per Mil-Spec Bolts installed to proper torque Staking on both sides of both bolts |
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Posted: 1/27/2014 9:34:00 AM EDT
[#11]
Quote HistoryQuoted:
BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. Elaborate on the "pressure testing". Is this the same concept as proofing a firearm? |
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Posted: 1/27/2014 9:34:44 AM EDT
[#12]
Quote HistoryQuoted:
My Rainier Thunderbolt was HP tested, looks like they have dropped them altogether now Quote HistoryQuoted:
Quoted:
BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. You are correct. I had one of those Thunderbolts, and it was HPT. It seems like HPT is losing favorability in the industry. Trends change all the time though. |
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Posted: 1/27/2014 9:36:20 AM EDT
[#13]
Quote HistoryQuoted:
Elaborate on the "pressure testing". Is this the same concept as proofing a firearm? Quote HistoryQuoted:
Quoted:
BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. Elaborate on the "pressure testing". Is this the same concept as proofing a firearm? Exact same concept. |
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Posted: 1/27/2014 9:48:54 AM EDT
[#14]
Just buy a Stag M16 carrier w/MP/HP bolt. $125.00
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Posted: 1/27/2014 9:55:38 AM EDT
[#15]
Quote HistoryQuoted:
Given that they spec everything out on the description for the BCG, I kind of doubt that. I'll message the guys at Rainier to pop in this thread. I've had 2 of their complete uppers including BCG that have run 1000%. Plus, they have a lifetime warranty on the BCG Gas key: Hard Chrome lined gas tube as per Mil-Spec Bolts installed to proper torque Staking on both sides of both bolts Quote HistoryQuoted:
Quoted:
The gas key on the rainier is MIM. Given that they spec everything out on the description for the BCG, I kind of doubt that. I'll message the guys at Rainier to pop in this thread. I've had 2 of their complete uppers including BCG that have run 1000%. Plus, they have a lifetime warranty on the BCG Gas key: Hard Chrome lined gas tube as per Mil-Spec Bolts installed to proper torque Staking on both sides of both bolts I agree they are great bolts. I have 4 of them. I certainly could be wrong. I just thought that these were injection marks as they look similar to injection marks on other known MIM parts I have had. 
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Posted: 1/27/2014 10:03:35 AM EDT
[#16]
Quote HistoryQuoted:
I agree they are great bolts. I have 4 of them. I certainly could be wrong. I just thought that these were injection marks as they look similar to injection marks on other known MIM parts I have had. http://i.imgur.com/vCUHDWD.jpg Quote HistoryQuoted:
Quoted:
Quoted:
The gas key on the rainier is MIM. Given that they spec everything out on the description for the BCG, I kind of doubt that. I'll message the guys at Rainier to pop in this thread. I've had 2 of their complete uppers including BCG that have run 1000%. Plus, they have a lifetime warranty on the BCG Gas key: Hard Chrome lined gas tube as per Mil-Spec Bolts installed to proper torque Staking on both sides of both bolts I agree they are great bolts. I have 4 of them. I certainly could be wrong. I just thought that these were injection marks as they look similar to injection marks on other known MIM parts I have had. http://i.imgur.com/vCUHDWD.jpg Huh. I'll pull mine and see if it has a similar mark. I did post in the Rainier forum so they should hopefully pop in with an answer. |
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Posted: 1/27/2014 10:05:50 AM EDT
[#17]
I assumed they were MIM as well. Shouldn't be a huge deal.
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Posted: 1/27/2014 10:58:49 AM EDT
[#18]
Quote HistoryQuoted: You are correct. I had one of those Thunderbolts, and it was HPT. It seems like HPT is losing favorability in the industry. Trends change all the time though. Quote HistoryQuoted: Quoted: Quoted: BCM pressure tests their bolts. Rainier does not. Pricewise, BCM tends to dwell on being expensive. You are correct. I had one of those Thunderbolts, and it was HPT. It seems like HPT is losing favorability in the industry. Trends change all the time though. I like the Thunderbolt. I wanted to buy more of them. I wonder if Denny has any, I haven't been to that site in nearly a year
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Posted: 1/27/2014 11:09:14 AM EDT
[#19]
I have the Standard Phosphate BCG from Rainier. It is HP and MP tested. So to say that aren't tested is incorrect.
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Posted: 1/27/2014 11:25:07 AM EDT
[#20]
Quote HistoryQuoted:
I have the Standard Phosphate BCG from Rainier. It is HP and MP tested. So to say that aren't tested is incorrect. Is the bolt marked HPT? I bought one last week when they were still $99, wasn't listed as HPT, received it Friday and the bolt only has the MPI marking. Makes no difference to me, as was mentioned earlier, they have a lifetime guarantee on their BCG's under normal use, and Rainier's quality is top shelf. |
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Posted: 1/27/2014 12:03:03 PM EDT
[#21]
HPT isn't listed in their specs, and all my recent Rainier BCGs are marked MPI only. If they are batch testing, you may have received that bolt. Its also possible that they are receiving bolts from multiple sources, and some are hpt and some aren't.
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Posted: 1/27/2014 12:18:07 PM EDT
[#22]
Quote HistoryQuoted:
Just buy a Stag M16 carrier w/MP/HP bolt. $125.00 I'm NOT saying this is a bad idea, but FWIW I have two of those BCGs and the key staking as received was ho-hum at best. Other than that they seem top notch. |
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Posted: 1/27/2014 1:47:14 PM EDT
[#23]
Quote HistoryQuoted:
I'm NOT saying this is a bad idea, but FWIW I have two of those BCGs and the key staking as received was ho-hum at best. Other than that they seem top notch. Quote HistoryQuoted:
Quoted:
Just buy a Stag M16 carrier w/MP/HP bolt. $125.00 I'm NOT saying this is a bad idea, but FWIW I have two of those BCGs and the key staking as received was ho-hum at best. Other than that they seem top notch. Staking ain't great but it's an easy fix and no big logo's. |
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Posted: 1/27/2014 2:55:25 PM EDT
[#24]
I've got a Rainer arms $99 bcg as well. It was only mpi tested, the staking was nothing to write home about, and the firing pin looked weak compared to my colt, PSA, and spikes. I've shot about 150 rounds so far with no problems.
But I don't consider it "top shelf". Top shelf implies that they went above and beyond to make this the best bcg you can get. Instead of "top shelf" let's call these "best value". Because you get a good bcg with a lifetime warranty for only 99 bucks |
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Posted: 1/27/2014 4:13:06 PM EDT
[#25]
I've had no issues with my Rainier BCG.
Dave N |
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Posted: 1/27/2014 5:30:27 PM EDT
[#26]
Meh, just get a LMT bolt assy and be done with it.
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Posted: 1/27/2014 5:51:17 PM EDT
[#27]
Quote HistoryQuoted:
But I don't consider it "top shelf". Top shelf implies that they went above and beyond to make this the best bcg you can get. Instead of "top shelf" let's call these "best value". Because you get a good bcg with a lifetime warranty for only 99 bucks Exactly.... On our bolts we offer a limited lifetime warranty...we are so confident in our Rainier Arms BCG we offer them with a limited lifetime warranty. So if at anytime your Rainier Arms BCG breaks on your during normal use (intentional abuse & gas key wear not included) we will replace it. |
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Posted: 1/27/2014 6:03:14 PM EDT
[#28]
Quote HistoryQuoted:
The gas key on the rainier is MIM. What is wrong with parts made using MIM process? |
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Posted: 1/27/2014 6:10:11 PM EDT
[#29]
Quote HistoryQuoted:
Exactly.... On our bolts we offer a limited lifetime warranty...we are so confident in our Rainier Arms BCG we offer them with a limited lifetime warranty. So if at anytime your Rainier Arms BCG breaks on your during normal use (intentional abuse & gas key wear not included) we will replace it. Quote HistoryQuoted:
Quoted:
But I don't consider it "top shelf". Top shelf implies that they went above and beyond to make this the best bcg you can get. Instead of "top shelf" let's call these "best value". Because you get a good bcg with a lifetime warranty for only 99 bucks Exactly.... On our bolts we offer a limited lifetime warranty...we are so confident in our Rainier Arms BCG we offer them with a limited lifetime warranty. So if at anytime your Rainier Arms BCG breaks on your during normal use (intentional abuse & gas key wear not included) we will replace it. Is the key MIM? |
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Posted: 1/27/2014 10:54:33 PM EDT
[#30]
Quote HistoryQuoted:
What is wrong with parts made using MIM process? Quote HistoryQuoted:
Quoted:
The gas key on the rainier is MIM. What is wrong with parts made using MIM process? MIM is more prone to breaking than something machined from a solid piece of metal. I try to avoid it when I can. However, I had a molded carrier key on one of my bolts, it never broke. |
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