Posted: 11/5/2010 3:27:40 PM EDT
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I’m running a BCM 14.5” upper with “ BCM Bolt Carrier Group (MPI) – Auto” BCG
Do any of you know if this BCG includes the “BCM Extractor Spring Upgrade Kit”? I ask, because it seems that I need a extractor upgrade and I’m wondering if I already have this part and should look else ware for the upgrade. Apparently, BCM doesn’t provide customer support so I’m checking here. |
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Quoted:
I’m running a BCM 14.5” upper with “ BCM Bolt Carrier Group (MPI) – Auto” BCG Do any of you know if this BCG includes the “BCM Extractor Spring Upgrade Kit”? I ask, because it seems that I need a extractor upgrade and I’m wondering if I already have this part and should look else ware for the upgrade. Apparently, BCM doesn’t provide customer support so I’m checking here. Care to elaborate on that? Look at you extractor. What color insert does it have? When I received my BCG from BCM it came with a little rubber o-ring too. That can be used to help extraction. |
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Quoted: Quoted: I’m running a BCM 14.5” upper with " BCM Bolt Carrier Group (MPI) – Auto” BCG Do any of you know if this BCG includes the "BCM Extractor Spring Upgrade Kit”? I ask, because it seems that I need a extractor upgrade and I’m wondering if I already have this part and should look else ware for the upgrade. Apparently, BCM doesn’t provide customer support so I’m checking here. Care to elaborate on that? Look at you extractor. What color insert does it have? When I received my BCG from BCM it came with a little rubber o-ring too. That can be used to help extraction. This. I've had stellar CS with Bravo. |
What is the carbine doing or not doing that causes you to think that you need an upgrade?
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I’ve tried calling a few times, but they have a recorded message saying that “everyone is packing orders” and no one is available to answer calls.
I tried emailing them, but the email link tries to install Outlook (which I don’t use). The extractor color is dark grey, matching the rest of the BCG. To be honest I dont have enough experiance to visualy inspect the parts and tell if I have a "good" spring/o-ring or not. |
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I’m getting extraction failures when the weapon is hot.
The bolt recoils without extracting the round (leaving it seated in the chamber). I need to drop a rod down the barrel and give it a little whack to clear. I am using Russian ammo, Tula. I hesitate to say that because I don’t want to start the ammo debate; but, my Colt and LWRC run it fine. IMO the BCM should too. |
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Quoted: I’ve tried calling a few times, but they have a recorded message saying that "everyone is packing orders” and no one is available to answer calls. I tried emailing them, but the email link tries to install Outlook (which I don’t use). The extractor color is dark grey, matching the rest of the BCG. Copy the email address and send an email from your preferred mail client. |
| Yep, that’s why I don’t post ammo type. Too many people seem to believe that a “good” rifle should be a picky little princess where as I believe a “good” rifle simply works with all ammo and under all conditions. I have plenty of reliable rifles. I sell or fix any rifle that isn’t. |
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Ok, I couldn’t get the email link to work, but I did find the address by “view source code” on the page. Got it now, I’ll email them. Generally if you right click on a link, you can then copy the link. 
I've never tried to call Bravo, I've always emailed them, and always gotten a fast reply. Even late on a Sunday evening once. 
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Quoted: Yep, that’s why I don’t post ammo type. Too many people seem to believe that a "good” rifle should be a picky little princess where as I believe a "good” rifle simply works with all ammo and under all conditions. I have plenty of reliable rifles. I sell or fix any rifle that isn’t. For the most part, I agree with you. Even so, putting the type of ammo could help people diagnose the problem. Also telling us what is happening could help us help you. Unless you just want to make sure you have the extractor components and don't want help diagnosing the true problem. |
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Tula is like Wolf...any good rifle should run wolf. PERIOD.
Scrub out your chamber real good with a wire cleaning brush....dont just swab it out. SCRUB it out and then swab it clean...also make sure no crap is stuck under the hook/claw of the extractor and make sure your bolt is clean. Are you having probs with other types of ammo? Is this rifle brand new?...if so get some better ammo and give it a good break in. |
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Quoted:
Yep, that’s why I don’t post ammo type. Too many people seem to believe that a “good” rifle should be a picky little princess where as I believe a “good” rifle simply works with all ammo and under all conditions. I have plenty of reliable rifles. I sell or fix any rifle that isn’t. I shoot the hell out of Wolf, so no that's not what I'm saying. Tula has been giving guys problems, not steel cased in general. This is the 3rd complaint in a week on 2 different web sites about Tula not extracting and getting stuck in the chamber. I would suspect the case is over sized or out of spec. |
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Your fooling yourselves thinking its OK to run Wolf/Tula. The excessive wear to the extractor alone with the steel on steel contact v. steel on brass should be reason alone to not use it. Everything else about steel ammo has been discussed ad nausem on the interwebs; case dimesions, lubricity, lacquer and its residue, thier copper washed bullets, powder quaulity, or lack there of.
I've even seen Hornady's steel case ammo used by students during cabine courses I taught and even its problematic. but hey, it's cheap right? good luck with that. ETA: the BCM extractor kit should do you good. It may take a pair of pliers to hold the extractor down, but a super strong/heavy extractor is essential. |
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Quoted: Tula is like Wolf...any good rifle should run wolf. PERIOD. Scrub out your chamber real good with a wire cleaning brush....dont just swab it out. SCRUB it out and then swab it clean...also make sure no crap is stuck under the hook/claw of the extractor and make sure your bolt is clean. Are you having probs with other types of ammo? Is this rifle brand new?...if so get some better ammo and give it a good break in. Wrong. Hobby grade rifles (bushmaster, rra, dpms, etc) have larger gas ports than standard to ensure they aren't undergassed with cheap, weak ammo. This leads to overgassing when run with military type ammo (M193, M855, etc). I've seen threads with guys that bought KAC rifles had issues with their rifles, and the solution (straight from KAC) was to stop cheaping out on ammo with a $2-3k rifle. |
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Quoted:
Quoted:
Yep, that’s why I don’t post ammo type. Too many people seem to believe that a "good” rifle should be a picky little princess where as I believe a "good” rifle simply works with all ammo and under all conditions. I have plenty of reliable rifles. I sell or fix any rifle that isn’t. For the most part, I agree with you. Even so, putting the type of ammo could help people diagnose the problem. Also telling us what is happening could help us help you. Unless you just want to make sure you have the extractor components and don't want help diagnosing the true problem. The problem I’m running into is that the weapon cycles without extracting the spent cartridge. This only happens when the barrel is very hot, not excessively hot, but after some rapid-fire drills. The rifle does NOT have extraction problems when I run Lake City M855 or commercial 223. Nor does it have a problem with the Tula during slow-fire, when the barrel doesn’t heat up. |
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Quoted:
Quoted:
Yep, that’s why I don’t post ammo type. Too many people seem to believe that a “good” rifle should be a picky little princess where as I believe a “good” rifle simply works with all ammo and under all conditions. I have plenty of reliable rifles. I sell or fix any rifle that isn’t. I shoot the hell out of Wolf, so no that's not what I'm saying. Tula has been giving guys problems, not steel cased in general. This is the 3rd complaint in a week on 2 different web sites about Tula not extracting and getting stuck in the chamber. I would suspect the case is over sized or out of spec. Shadowcop – sorry for the misunderstanding, I get it now. You may be right, but I’m pretty sure my problem occurs with Wolf too, which I thought was the same ammo. |
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Your fooling yourselves thinking its OK to run Wolf/Tula. The excessive wear to the extractor alone with the steel on steel contact v. steel on brass should be reason alone to not use it. Everything else about steel ammo has been discussed ad nausem on the interwebs; case dimesions, lubricity, lacquer and its residue, thier copper washed bullets, powder quaulity, or lack there of. I've even seen Hornady's steel case ammo used by students during cabine courses I taught and even its problematic. but hey, it's cheap right? good luck with that. ETA: the BCM extractor kit should do you good. It may take a pair of pliers to hold the extractor down, but a super strong/heavy extractor is essential. I don’t disagree the steel often times fails under heavy use when averaged over the general population of shooters and rifles. However I’m also aware that some rifles eat anything. I have 2 such AR15s.. They can handle Magpul carbine drills without issue. So my question then becomes, what is different about the ones that work compared to the ones that don’t? Also I got a hold of BCM, according to them I already have the upgraded extractor, so I guess that’s not the issue. It could however be a bad batch of Tula, I need to test on some new Wolf next. |
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The BCG probably does not have the O-ring installed - I could be wrong. I know they include it when you buy the BCG separately, but it is not installed at that time. It will aid with the extraction of steel cases.
I want my weapons to work with every type of ammunition I can find - however, after recently chasing Tula gremlins for a friend (with a DD rifle), I have little interest in extensively modifying my personal weapons to run on that ammunition. It may be a certain lot, or it may be all Tula. I shoot almost exclusively steel case ammo. I won't buy Tula. |