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 VRMN8R
AMERICA, FUCK YEA!
Team Member
Joined: Dec 2005  NE, USA
 Posts: 7974 Feedback: 100% (14) Link To This Post |
Posted: 12/7/2011 7:33:10 PM
Originally Posted By dennyd: My Superior lower has the hole tapped all the way so it got a set screw installed.
My Areo lower was tapped all the way through, so made a set screw a 1/4 inch long from a bolt i cut off, made a slot for a screw driver with a dremel cutoff wheel, had to take a little metal off the back of the trigger where the saftey goes through, takes about a minute, loctite my homemade screw in place and presto, works like a charm, i also just bent my springs, just left it on the hammer and bent em backwards. This works folks. My Palmetto lowers have to be threaded. One set screw installed on that one.
Love this "mod"
My FFL had me feel the Stag LPK thats in his AR. Very smooth pull, nice and crisp too. |
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Posted: 12/14/2011 1:35:17 PM
Just for reference, since I haven't seen any mention yet:
I'm doing the full trigger mod on some DPMS kits that I've got. My lower (Surplus Ammo and Arms) was already threaded through. When I added the set screw I found that if I wound it in to take up all of the pre-travel it would hit the safety as expected, but what I also found is that it started catching the disconnector. I manually cycled the hammer while backing the set screw off till it just cleared the disconnector. It would then also just clear the safety. Still has a bit of creep (maybe 1mm), but it's worlds better than stock (maybe 2.5mm of creep). I'll be lightening the hammer and testing as soon as my JP springs show up. I want to run it with all types of ammo and a .22 dedicated upper to see how it works in those scenarios before I mod any of my other lowers. I'll report back with my findings. I will say that just polishing the sear and installing the set screw has radically changed the feel of this trigger. I can't believe how easy of a mod it was and what a huge difference it makes. Thanks, guys... |
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Posted: 12/19/2011 10:27:05 PM
so the set screw takes up the creep but does it do anything for the over travel / reset?
i'm thinking about getting the adjustable mega trigger instead |
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Posted: 12/21/2011 12:16:21 PM
Did this mod today. Everything went great until I filed too much off the trigger where it interfered w/the safety. Now safety won't work & my trigger is trash. DON'T file too much off the back of the trigger. Other than that is gonna be a nice improvement once I do it all over again on the new trigger!
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Posted: 12/22/2011 11:11:13 PM
Originally Posted By TexFF:
Did this mod today. Everything went great until I filed too much off the trigger where it interfered w/the safety. Now safety won't work & my trigger is trash. DON'T file too much off the back of the trigger. Other than that is gonna be a nice improvement once I do it all over again on the new trigger! With my 2nd trigger I figured out where I went wrong. It is PARAMOUNT that you have the hammer cocked(FIRE) position before you decide how much to take off the rear of the trigger for clearance. If you don't have the hammer in the FIRE position you WILL take off too much. ***************COCK THE HAMMER BEFORE YOU MEASURE HOW MUCH TO TAKE OFF TO CLEAR THE SAFETY************************************************* If it's not 'cocked' you'll take off too much. I never saw this point made in ANY of the trigger mod threads I read but it is paramount!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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Posted: 12/23/2011 8:26:48 AM
[Last Edit: 12/23/2011 8:27:47 AM by MGP]
Originally Posted By TexFF:
Originally Posted By TexFF:
Did this mod today. Everything went great until I filed too much off the trigger where it interfered w/the safety. Now safety won't work & my trigger is trash. DON'T file too much off the back of the trigger. Other than that is gonna be a nice improvement once I do it all over again on the new trigger! With my 2nd trigger I figured out where I went wrong. It is PARAMOUNT that you have the hammer cocked(FIRE) position before you decide how much to take off the rear of the trigger for clearance. If you don't have the hammer in the FIRE position you WILL take off too much. ***************COCK THE HAMMER BEFORE YOU MEASURE HOW MUCH TO TAKE OFF TO CLEAR THE SAFETY************************************************* If it's not 'cocked' you'll take off too much. I never saw this point made in ANY of the trigger mod threads I read but it is paramount!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Im not busting your balls but you have to have the hammer cocked to engage the safety its just common knowledge.You need to know how your weapon works before you go playing around with anything Especially with the trigger. 
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Posted: 12/23/2011 12:28:18 PM
[Last Edit: 12/23/2011 1:08:23 PM by TexFF]
I know it has to be cocked to engage safety(I've owned several dozen rifles & ALL had to be cocked to have safety on) BUT I'm talking about looking thru the safety hole, w/the safety removed, to measure how much to shave off for clearance.
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Posted: 12/25/2011 12:16:12 AM
Where can i buy the correct tap and set screws?
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esa17
It's safer up there!
Team Member
Joined: Jan 2010 MS, USA
Posts: 1390 Feedback: 100% (12) Link To This Post |
Posted: 12/25/2011 10:43:24 AM
Lowes or Home Depot sell them as will any local hardware store.
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Posted: 12/30/2011 2:20:41 PM
I am in the middle of my first AR15 build. I have a YHM stripped lower, and I got a PSA MOE Plus LPK.
My intention before installing the kit was to do the trigger job, including the Set screw in the Grip screw hole, but I have to be honest...I don't feel any pretravel at all with it the way it sits. I measured the total travel at just under 3/16 of an inch, from start to break. Is this unusual? I can't see why anyone would want it any shorter. The only thing I did do was install a set of JP trigger springs and that reduced trigger pull a noticible amount. I still have th upper to go, but it will have to wait a few months. I have a 1911 on layaway at buds I need to pay off first.... I look forward to your comments |
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Posted: 1/4/2012 6:29:02 PM
ok quick question on this mod. when adjusting the set screw for the disconnector release. I back it out until the disconnect releases the hammer to the sear. now when checking the clearance between the disconnector and the hammer spur by pushing the hammer with my thumb is it ok for the two to touch (no trigger pull), as long as the disconnector catches the hammer when trigger is pulled back and releases when trigger is released? I have just a little bump in there between the two when thumb operating the hammer. but catches and releases just find every time.
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Posted: 1/5/2012 1:36:50 AM
Originally Posted By AR15fan:
Where can i buy the correct tap and set screws? ACE Hardware. Cheaper than anybody else and they carry everything. |
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Posted: 1/5/2012 1:40:29 AM
[Last Edit: 1/5/2012 12:04:46 PM by Espos1111]
Originally Posted By HenryinFlorida:
I measured the total travel at just under 3/16 of an inch, from start to break. Is this unusual? I can't see why anyone would want it any shorter. I look forward to your comments 3/16 of an inch seems like a mile while "squeezing" slowly. |
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Posted: 1/11/2012 12:49:50 PM
Originally Posted By esa17:
I'm buying a new hammer and spring set today, along with some anti-roll pins I think. I've never tapped a lower before, what kind of lube do you use? Any other tips for tapping the lower? There are products out there for tapping like "Tap-Magic" - for aluminum they are basically kerosene. Diesel would probably work fine. |
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Posted: 1/13/2012 7:21:55 PM
This works pretty good. What # of trigger do you have now. Mine went from 9 gritty #'s to a smooth 5 1/2 #'s. Would like to get to 4-41/2#'s if I could. What would the next logical step be?
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Posted: 1/29/2012 12:40:17 AM
I just installed a mega trigger on one of my training ARs that has a single stage trigger. I normally run LMT two-stage triggers, but after trying Mega's trigger, I think I will be building single stage trigger/lowers with a Mega trigger. Light and smoothe...
D. |
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Posted: 1/29/2012 8:59:21 AM
Originally Posted By shooter1950:
This works pretty good. What # of trigger do you have now. Mine went from 9 gritty #'s to a smooth 5 1/2 #'s. Would like to get to 4-41/2#'s if I could. What would the next logical step be? just did this and got to a 4lb pull on every pull by using the set screw and stock trigger parts, JP enhanced spring kit and molygraph grease on the sear and disconnector contact points. I never touched the disconnector with a stone. don't have any way to measure travel but it ain't a whole lot.. this lower is for a 7.62x39 build, thats why I went with the enhanced spring kit. |
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Posted: 2/9/2012 1:23:07 AM
I just tried this and got the most horrible reset ever. The pull is great but when i let off the trigger is slow to let out to the point that it will slow down my rate of fire. Its like that even with the set screw backed all the way out. Could this be because of me bending the hammer spring by any chance? I ask because i thought maybe with that spring weaker it is having a hard time pulling the hammer off the disco. I personally think that its just bad parts. I got a new trigger and hammer for this just in case things went wrong(thank goodness), but my disconecter is from my old FCG that works just fine. Im thinking maybe the new hammer or trigger just dont like that disco. If anybody has any thoughts or experience with this problem, your advice would be appreciated.
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Posted: 2/13/2012 10:30:29 AM
I installed the set screw in my lower, but only took it up to the trigger, I didn't file the slot to allow it to be set further in, and I also replaced my trigger group springs with the JPS 3.5 lb spring set.
Everything is working perfect and has very little reset travel. Not sure why your's is slow to return. You must have something rubbing. |
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Posted: 2/15/2012 8:55:16 PM
Originally Posted By sandmountaindriller:
I just tried this and got the most horrible reset ever. The pull is great but when i let off the trigger is slow to let out to the point that it will slow down my rate of fire. Its like that even with the set screw backed all the way out. Could this be because of me bending the hammer spring by any chance? I ask because i thought maybe with that spring weaker it is having a hard time pulling the hammer off the disco. I personally think that its just bad parts. I got a new trigger and hammer for this just in case things went wrong(thank goodness), but my disconecter is from my old FCG that works just fine. Im thinking maybe the new hammer or trigger just dont like that disco. If anybody has any thoughts or experience with this problem, your advice would be appreciated. Be sure that the trigger return spring is correctly installed. |
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Posted: 2/16/2012 5:24:42 PM
I did this about two weeks ago with everything that the OP said to do aside from installing new springs... Lowe's had everything I needed for the set screw and tap. I found that I could put the set screw in as far as it would go until my trigger would ride against the safety. I put it in there until the safety ground against the trigger then turned the set screw back one full turn and it worked perfectly! Polished the sear and everything, holy smooth! Love it!!!!!!!
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Posted: 2/16/2012 8:14:09 PM
How does this affect the drop safe feature of the trigger group? If you watch your hammer as you pull the trigger it moves from the interaction with the sear. It is in essence over centered and helps keep the weapon from having an AD if dropped or handled roughly. I really want to do this mod but don't want do it if it compromises the safety features of the design.
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Posted: 2/17/2012 12:30:23 AM
Originally Posted By ErikS:
How does this affect the drop safe feature of the trigger group? If you watch your hammer as you pull the trigger it moves from the interaction with the sear. It is in essence over centered and helps keep the weapon from having an AD if dropped or handled roughly. I really want to do this mod but don't want do it if it compromises the safety features of the design. I drop tested my rifle a bunch of times after the mods and have yet to have the hammer drop. Cock hammer, and mortar the stock on the floor a dozen times (collapse stock before hand so you don't break it), if hammer doesn't drop, you're good to go. Same tests you should do when you assemble any AR. |
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Posted: 2/19/2012 10:59:52 PM
triger jobs are better left to a profesional.and remember.that if you happen to shoot someone with that weapon,it falls under modification.
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Posted: 2/20/2012 12:40:43 AM
Originally Posted By cruz1911:
triger jobs are better left to a profesional.and remember.that if you happen to shoot someone with that weapon,it falls under modification. With the ammount of "professional" trigger jobs that have had issues, I'll take my chances. As for a modification, if you believe that then you better not ever add a red dot, flashlight, etc, it may make it easier to shoot someone. 
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