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Posted: 3/1/2004 9:00:18 PM EDT
| I recently put a superlight upper on a PWA lower that had been lying around for a while. When using 30 round mags the bolt would not go to battery with more than 15 rounds in the mag. With the 10 rounders it would malfunction with more than 6 in the mag. Do someone make aftermarket springs that are stronger than the factory spring? Is this a common problem? |
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Quoted: one of the 30's was a new thermold Another vote magazine related stoppage. New Thermolds will almost always have extra material on the feed lips that gets shaved off by the bolt carrier. Combined that with a loaded mag and the bolt carrier will almost always get hung up until broken in. If you have another new Thermold laying around try cycling the rifle with an empty mag inserted. Look for black plastic curly-qs in the upper. Buffer springs rarely go bad. Measure it - what length is it? Carbine or rifle spring? Buffer spring specs: Rifle Free length 11.75"min - 13.5"max Carbine Free length 10.0625"min - 11.25"max |
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I would highly recommend Speedlock CS Springs. You can find out more information and actually order them from this website: [url]http://www.zediker.com/tubb/images/speedlock/slspringsar15.html[/url] I have purchased both the Regular spring for the standard buffer tube and a Car spring for rifles with collapsible stocks. The springs increase reliability and are supposed to outlast standard springs by 100 times. Check them out. |
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Standard springs will work for the life of your rifle. Other than extremely rare exceptions, the only springs we replace in the Army, still the prime user of this rifle system, are those that troops dicked with during cleaning. 10% extra power does not been 10% better..... -- Chuck |
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