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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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Old 11-02-2008, 10:04 PM
trg-s338 trg-s338 is offline
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Default First build test driven today!

At Lytle today, 120 rounds sent downrange to check my AR for bugs. Bushmaster Dissipator upper shot great except for an occassional failure to eject case jammed in with the new round being brought up the feed ramp. BCG well lubed prior to firing rifle, all clean for this first run. What causes this problem? Do I need an enhanced extractor spring and/or the Crane-O ring or is this just part of break in and expected. Should I continue to use until 500 rounds and then make a judgement on the problem or is that not a good idea. I would say in the 120 rounds it happened about 5 times. Any tips? Thanks.
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Old 11-02-2008, 11:41 PM
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Mississippi Mississippi is offline
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Had the same problem. Added the enhanced extractor spring kit and black bushing (instead of the blue one). Fixed my issues.
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Old 11-03-2008, 12:16 AM
thy95 thy95 is online now
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i feel like i got to do this
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Old 11-03-2008, 12:36 AM
Steve O
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Originally Posted by Mississippi View Post
Had the same problem. Added the enhanced extractor spring kit and black bushing (instead of the blue one). Fixed my issues.
Just got a new bushey my self. haven't had a chance to shoot it yet.
So what is this upgrade kit? Is there any links for install?
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Old 11-03-2008, 12:42 AM
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aplinker aplinker is offline
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upgrade the extractor spring, insert and add an o-ring.

Like this:

You might also consider heavy buffers for those carbine gassed guns.

Next time, buy mid-length - they don't need the carbine fixes, are more reliable and aren't as hard on parts.

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Old 11-03-2008, 9:08 AM
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scubamark13 scubamark13 is offline
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This is what I put on all my OLL and they haven't had a single extractor problem since. Trust me it's worth every penny!
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