And that is why JP recommends a bobbed hammer for use with their yellow springs, for increase in speed.
Trigger Job?
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Maybe you should cut even more more off for greater energy.
There must be a reason the military specified a larger hammer with a big tail.
There is usually a reason for everyting that has certain specifications.
I switched back to the milspec hammer spring for my SHTF AR since I have had many misfires with reduced springs.
I just received 2 Larue triggers and the hammer springs are massive, stronger than milspec. Got me thinking.Last edited by bj139; 09-14-2017, 02:05 PM.
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the " big tail" was for the full auto sear
civilian hammers have the notch on the end ground off
JP takes it a step further
i have 3 or 4 of them installed,.....buy with confidence
JP is top notch stuffNRA LIFE
USPSA-IPSC
"The rifle itself has no moral stature, since it has no will of its own. Naturally, it may be used by evil men for evil purposes, but there are more good men than evil, and while the latter cannot be persuaded to the path of righteousness by propaganda, they can certainly be corrected by good men with rifles."
-Jeff Cooper
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Yes. I see. You can get greater hammer accelaration with less mass and with adequate reliability.
To the OP: I was led to this video by reading these posts. If JP uses sandpaper, it must be OK.
Another question about the OP: Why do this?
"I also opened up my buffer and removed the weight, cut it in pieces and reassembled with a small piece in the buffer held in the center with rubber tubing on either end. It now weighs ~1.75 oz."Last edited by bj139; 09-14-2017, 02:48 PM.
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First let me reiterate that I am an AR novice so do your own research, I will post the outcome of these "experiments" when I finish the gun. It may not function at all and I will have to go back to stock components or it may be as good as some competition 3 gun builds.
I am trying to reduce reciprocating mass to reduce perceived recoil and smooth the action of the gun. Again reducing spring weight and using lighter comments allows the system to perform but with less muzzle movement. I mostly just want a light gun for hunting. This will also speed the action of the gun and make follow up shots quicker and because of less movement you can stay on target. You can buy light buffers but I have more fun trying to make this work with cheap components and redneck engineering. The silicone tubing was my idea to cushion the blow of the weight inside the buffer and balance it a little better rather than all the weight at one end or just sliding around.Last edited by Troutguide; 09-14-2017, 03:12 PM."I rarely give a definite answer" - TG
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Originally posted by derek45 View Postthe " big tail" was for the full auto sear
civilian hammers have the notch on the end ground off
JP takes it a step further
i have 3 or 4 of them installed,.....buy with confidence
JP is top notch stuff
The selector shaft deadens the tail of the disconnector, so when you hold the trigger down, the hammer is no longer arrested by the disconnector. It then only has the auto sear to get caught on, which happens under spring tension.
This gif shows you SEMI mode for a few cycles, then FULL:
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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Trigger pre-travel adjustment set screw in place and blue locktite dried. I banged it around a good bit to make sure it is safe and it is 1/4 turn away from where it really felt good so thats where I left it. Fortunately the grip screw fit without needing a washer and the threads were full length so no additional work needed. Now I have a polymer lower with brass insert that I am not sure how to handle. Thinking a small set screw in the trigger body itself going down to lower would work, but that is for another thread. Barrel should arrive later today, lets hope."I rarely give a definite answer" - TG
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Originally posted by bj139 View PostLR,
Great GIF. So the BCG releases the hammer just as the BCG locks into battery?
It acts as the timing mechanism to allow controlled automatic fire on a locked breech.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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My adult son uses 3 different shaped ultra fine ceramic knife sharpening sticks. They are white and are ultra fine like my Spyderco knife triangle stones. He only hones facing function surfaces to a shiny smooth at the exact angle as manufactured. He is not even taking 0.0001" off so it does not effect safety. The sticks are flat so the surface stays flat and true. I re-blue everything. It totally takes all the grit feeling out of the trigger and make them break super clean. The picture is on my Grendel before I took it apart to install JP 3.5# trigger springs. There is some TW25B Grease on the Aero trigger parts but you can see the super smooth contacting surfaces. It makes a $50 trigger feel and function like a $150 trigger. It still is a single stage 3# trigger.
Grendel Trigger resized.jpgLife is fun when your ammo budget is more than your house payment.
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Originally posted by LRRPF52 View PostIn the AUTO mode on a select-fire gun, the bottom leading edge of the tail on the bolt carrier trips the AUTO sear to release the hammer right after the bolt has locked into the extension.
It acts as the timing mechanism to allow controlled automatic fire on a locked breech.
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