J P Enterprises AR trigger
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Old 01-14-2014, 07:12 PM   #1
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Default J P Enterprises AR trigger

I was wondering if any one here has ever installed a J.P. Enterprises JPFC-1 adjustable trigger with their Speed Hammer. I ordered one from Brownells yesterday for the 264 lbc build I'm working on. The reviews I read are pretty good but some say it can be a pain to install and adjust with some file or stone work necessary and others say it was a piece of cake to install. If anyone has installed one do you have any advice or anything I might need to watch for or anything that would make the installation easier. It comes with a 30 minute DVD explaining how to do it.
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Old 01-14-2014, 09:08 PM   #2
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It's probably just the variations in their receivers. Difference in tolerances and stuff. There's probably no correct answer for your question
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Old 01-14-2014, 11:40 PM   #3
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It's probably just the variations in their receivers. Difference in tolerances and stuff. There's probably no correct answer for your question
That could be but most of the fitting I have read about wasn't fitting the trigger group to the receiver but fitting the trigger to the safety and tuning the disconector engagement. Guess I find out next week.

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Old 01-15-2014, 02:54 AM   #4
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Yeah. My trigger/safety fit fine so I dunno what to say. I'm happy with it.
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Old 01-15-2014, 01:28 PM   #5
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Yeah. My trigger/safety fit fine so I dunno what to say. I'm happy with it.
Ok thanks. Thats what I was really asking. Just what was the experence of anyone that has installed one, good or bad.
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Old 01-16-2014, 05:53 AM   #6
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I just ordered the jp enterprise springs from midway usa. For ten bucks it's worth a try. Beats spending 200+ on a high end trigger. If it brings my trigger down to a 3.5 trigger pull then I'll be a happy camper!!

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Old 01-24-2014, 01:36 PM   #7
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I just ordered the jp enterprise springs from midway usa. For ten bucks it's worth a try. Beats spending 200+ on a high end trigger. If it brings my trigger down to a 3.5 trigger pull then I'll be a happy camper!!

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They also suggest cutting or grinding down the spur on the stock hammer to lighten it a bit to speed up lock time.
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Old 01-24-2014, 01:58 PM   #8
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Ok I have everything done to my 264 lbc build that I can do till the barrel gets here which if it comes within the promised time frame that will be between Feb. 11th and 25th ( 10 to 12 weeks). The JP Enterprises trigger turned out to be a piece of cake to install. You first install the trigger and hammer without the disconnector and adjust the front set screw to set overtravel and then set the rear set screw to adjust sear engagement. Then you lock both of those in place with red Loctite. Then you install the disconnector and they say you will probably have to adjust its timing by doing some stoning or grinding. I didn't as mine worked perfectly as is. You hold the trigger to the rear and cock the hammer and the disconnector should grab the hammer, then as you slowly release the trigger the disconnector should pass the hammer off to the trigger. Then as you pull the trigger it releases the hammer (which you control with your thumb). My trigger has very little movement and releases the hammer at 3 lbs. They also say you may have to fit the safety which I didn't as it also works as it should as is. I have 178 pieces of new A.A. 6.5 Grendel brass on the way and another 100 on backorder.
img_3611.jpg   img_3606.jpg   img_3603.jpg   img_3612.jpg   img_3614.jpg  

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Old 01-24-2014, 02:23 PM   #9
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They also suggest cutting or grinding down the spur on the stock hammer to lighten it a bit to speed up lock time.
I had to do this , I got some light JP springs and then I had alot of FTFire issues so I knocked the spur off the back of the hammer and it works fine now
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Old 01-24-2014, 02:51 PM   #10
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How do you like the LRB lower ? Love the ones I have , They fit tightest of all the lowers I own .
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