Jard Adjustable Trigger Install:First order a Jard Adjustable AR-15 trigger ($120 from midwayusa with CR Discount, 150 without a CR)
First all the tools and equipment you will need to install your trigger.
Total time should take around 30-45mins
Punch
Hammer
Hex Key Set
Flat Head Screw Driver
Blue Loctite (Comes with trigger in package)
Flat Head screwdriver
Some sort of degreaser (Brake cleaner, gun scrubber etc)
Qtips
Some sort of grease, i use weapon shield grease
Step one:First disconnect the upper from the lower and make sure there is no magazine in the rifle and the weapon is unloaded.
Step Two:
Using the flat head screwdriver remove the pistol grip (Take if off
slowly and dont lose the detnet and spring, i put them in the box that
the trigger came with)
Remove safety selector
Now take your punch and hammer and punch out your trigger pin and your hammer pin
Set the old hammer and trigger aiside as you wont need any of these parts
Step Three:Once you get your pistol grip off and the old trigger out. Lay everytthing out with your new trigger
http://img.photobucket.com/albums/v406/LancerV/DSCN0639.jpgStep Four:Take off all the screws on the new trigger, and degrease them. The
silver pin that holds in the disconnector and spring Should be 3 of them
http://img.photobucket.com/albums/v406/LancerV/DSCN0641.jpg
Step Five:After you have degreased all your screws use the blue loctite (it wont
cure before you get done as it takes around 30mins to install), and
grease and grease the parts shown. And reinstall all screws, make the
two outside screws flush with the bottom of the trigger
http://img.photobucket.com/albums/v406/LancerV/DSCN0644.jpgGrease the hole on the bottom as it will hold the trigger spring in place
http://img.photobucket.com/albums/v406/LancerV/DSCN0645.jpgInstall all the screws and dissconector
http://img.photobucket.com/albums/v406/LancerV/DSCN0647.jpgStep Six:
Take your sear engagement screw and put it where the old pistol grip
screw went. Let it protrude out as much as you can. It may get really
hard to screw in once past a certain point as the threading stops. But
you can just force it in as, it keeps it in tighter, and nothing else
is ever going to go that far in
http://img.photobucket.com/albums/v406/LancerV/DSCN0648.jpghttp://img.photobucket.com/albums/v406/LancerV/DSCN0649.jpgStep Seven:Install the trigger in your lower receiver, and the hammer, see if the hammer cocks back and grease it according
http://img.photobucket.com/albums/v406/LancerV/DSCN0650.jpgStep Eight:If you put the sear engagement screw in far enough the hammer shouldnt
cock back, keep backing out the sear engagement screw until the hammer
will cock back. After this rotate the sear engagement screw out one
more full turn
http://img.photobucket.com/albums/v406/LancerV/DSCN0654.jpgStep Nine:Remove the hammer using the punch and hammer, and adjust the first
screw nearest towards the magwell. This will adjust the overtravel.
This part takes the longest, keep backing it out tell it wont cock back
anymore. Once this happens take out about half a turn and reinstall
hammer should cock back just fine. You want the bottom of the hammer to
just be traveling past the trigger
http://img.photobucket.com/albums/v406/LancerV/DSCN0655.jpgStep Ten:Next is the disconnector screw this is the screw in the middle, tighten
it all the way down at first. And try to move the hammer down, the
hammer should just barley catch it where it will have enough force to
come back up from the disconnector, if it looks like its going to catch
it alot keep backing out the screw tell it looks like it barley
catches. Once it looks ok push the hammer down and it should catch it
and come back up. If it gets stuck you will have to take out the
hammer, and back it out some more
http://img.photobucket.com/albums/v406/LancerV/DSCN0658.jpgStep 11:The last screw is for the safety it lets you adjust how much travel you
have in your trigger with the safety on, Jard says there should be
none, but ive never got to that point wheres there none with still
being able to put the safety selector in. You keep backing it out until
you cant put the safety selector in and than you just go down 1/8 of
turn and put in the safety lever. Dry Fire to make sure it works.
Step Twelve Last Step:Put the dentent and than the spring in, and the pistol grip. And grab
the modified pistol grip screw and blue loctite it. It should look like
this
http://img.photobucket.com/albums/v406/LancerV/DSCN0661.jpgAlso grease up everything
http://img.photobucket.com/albums/v406/LancerV/DSCN0660-1.jpgAnd a 10pull trigger average
http://img.photobucket.com/albums/v406/LancerV/DSCN0662.jpgAnd video
http://www.youtube.com/watch?v=XHcctzDfZJk