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Posted: 5/7/2009 8:18:58 AM EDT
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Is there anyone besides KAC and LMT that make enhanced bolts with two extractor springs? I seem to remember another company making them a while ago, but can't seem to remember the name.  |
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Quoted: I have a RRA enhanced bolt. Or so the website I ordered it from claimed. From Pete at Legal Transfers: The Semi Carrier Now has more meat around the Firing pin area. Like the M-16 Carrier Rock River and Les Baer are both doing this now on the Semi Auto Groups Colt has been doing this but shaves off the rear of the carrier all the way back like a half moon Both Les Baer and Rock River semi carriers are still full circle at rear of carrier to semi auto specs. I'm guessing that the enhanced 'bolt' from RRA is rather an enhanced carrier. |
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Quoted: Dual extractor springs honestly seems like a solution in search of a problem. Get a quality bolt, put a black buffer, o-ring, and heavy-duty spring in there, and it'll extract anything. That's probably what I'll end up doing, I'm just trying to figure out the name of this other company that made/makes them. |
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Quoted:
Dual extractor springs honestly seems like a solution in search of a problem. Get a quality bolt, put a black buffer, o-ring, and heavy-duty spring in there, and it'll extract anything. This is what I do with all of my bolts(sans o-ring until the spring wears), and it costs less than a happy meal 
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Quoted:
Dual extractor springs honestly seems like a solution in search of a problem. It's not the dual springs so much as the balanced extractor design (or closer to it anyway) that improves overall performance and reliability. Just so happens that dual springs work well with the balanced extractor design. By balanced extractor design, that means more mass behind the pivot pin so as to balance out the inertia of the extractor during bolt rotation/unlocking. The reason that super-duper-extra extractor tension is needed in some ARs is due to the rapid unlocking rate/cyclic speed of short gas system configurations in combination with the standard unbalanced extractor. Fast speed + unbalanced extractor means that the extractor is pushed away from engagement with the cartridge rim during bolt unlocking. Lower the unlocking speed and the force is reduced; change to a balanced extractor design and it's eliminated. |
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Quoted: That guy's info is way, way, way outdated.Quoted: I have a RRA enhanced bolt. Or so the website I ordered it from claimed. From Pete at Legal Transfers: The Semi Carrier Now has more meat around the Firing pin area. Like the M-16 Carrier Rock River and Les Baer are both doing this now on the Semi Auto Groups Colt has been doing this but shaves off the rear of the carrier all the way back like a half moon Both Les Baer and Rock River semi carriers are still full circle at rear of carrier to semi auto specs. I'm guessing that the enhanced 'bolt' from RRA is rather an enhanced carrier. Colt hasn't made half moon carriers in a long time. |
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