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Posted: 6/30/2009 12:16:05 PM EDT
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I've done a search but didn't find what I was looking for so...
From what I can see, the JP trigger essentially has two "lugs", one forward and one aft of the pivot pin with adjustment screws. The front adjustment screw limits sear engagement and the rear screw limits overtravel. Does that about sum it up? Are there any material differences in the hammer and disconnector that affect the operation of this trigger assy? |
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I think that's backwards.
The trigger has two adjustment screws. The forward screw limits overtravel. You screw it down to the point that you can't pull the trigger enough to release the hammer and then back it off a little (obviously, there more precise instructions). Think of it as putting a block under the front end of a see-saw. It limits how far the see-saw can tip in that direction. It keeps the trigger from being pulled father than is necessary to release the sear. The set screw at the back is used to limit take up. Screwing down until it hits the bottom of the lower receiver tilts the see-saw forward, eventually to the point that the sear releases and the hammer falls. Once you hit that point, you back off a little and now you have a trigger with little or no take up. JP has videos on its site that show this in great detail. The disconnector then must be "timed" so that it catches the hammer with the trigger pulled, but releases at the right time as you let it up so that it is caught by the sear. You time it by removing metal from the nose a bit at a time. It's easier than it sounds. The JP hammer is lighter and faster than a stock hammer and according to JP, everything is harder steel, not just heat treated. I have two of them and think they are the best single stage trigger out there. |
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Quoted: I agree. I do all of my own plinkers in the 4 lb. - 4 1/2 lb. range in fact I use the JP's Reduced Power Springs for setting these up. I've also used JP's Speed Hammer's weight and profile for those hammers that I bob the hook off in my trigger jobs (did one today). I use JP's when putting together a bench gun or needing something lighter. I have two of them and think they are the best single stage trigger out there. |
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