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Old 04-08-2010, 08:28 AM
chp chp is offline
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Join Date: Apr 2010
Location: Atlanta, GA
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Yes - I use them on all my AR's. I also suggest that you lighten the hammer by removing the "tail" - which is unnecessary on a semi auto rifle. The lighten hammer ensures reliable ignition with lighter springs. JP sells its own "speed hammer" - but you can use a stock one and modify it yourself. Take a look at the JP speed hammer and you can use it as a model for your mods.

Note that these mods DO NOT include touching any of the engagement surfaces. Bad juju.

I've shot over 12k through various AR's with these springs [and the lightened hammer] - both 3 gun and defensive rifles - with no issues.
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