Go Back   Maryland Shooters > Topics of Interest > Gunsmithing
Don't Have An Account? Register Here

Join MD Shooters

Reply
 
Thread Tools Display Modes
Old August 12th, 2019, 11:09 PM #1
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Tale of Two ( OEM) AR Triggers

Deep Background - My personal standards of Expectations for all things AR-15 were set by my first - a 1994 ( Big Pin) Colt Sportster , of the 20in A2 flavor . A very nice out of the box trigger , and 1.5moa with milsurp, and 1.0moa with handloads, using stock iron sights . I decided it was just fine stock , and didn't have need of "improvement" .

Current starting point - I now have two nearly identical virgin AR's . If singular , the imeadate response would have been to just put an ALG in it . ( Used ALG in my pistol build , they have the Biggfoot Thumbs Up rating ) . But have two for side by side comparison, I'll do experementation with the disposable original triggers .

Rifle A will get old school dry firing , Rifle B will get a Paracord Trigger Job . After first round maybe one of them will recieve a .50 Cent Trigger Job . Measurements by Wheeler ( spring style) trigger pull gage . Not sure if the absolute numbers jive with my educated trigger finger, but should at least give relative measurements .
Biggfoot44 is offline   Reply With Quote
Old August 12th, 2019, 11:34 PM #2
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Rifle A initial weigh in - Very gritty, inconsistent readings between 6.75 and just over 8lb .( FWIW -inital fondling of A & B were very similar .)

No cleaning or additional lubing, 100 x of dry fire w/ snap cap .

Not quite as inconsistent , 7 to just under 8lb . Perceptible lessening of grit .

Probably will wait for arrival of Brownells order for the rubber-ish dohhickie frame protector for safe dry firing w/ lower seperated instead of further snap cap work outs .
Biggfoot44 is offline   Reply With Quote
Old August 12th, 2019, 11:35 PM #3
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Reserved for updates.
Biggfoot44 is offline   Reply With Quote
Old August 12th, 2019, 11:35 PM #4
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Reserved for updates .
Biggfoot44 is offline   Reply With Quote
Old August 13th, 2019, 02:22 AM #5
babalou's Avatar
babalou babalou is offline
Senior Member
 
Join Date: Aug 2013
Location: Monkey County
Posts: 4,710
babalou babalou is offline
Senior Member
babalou's Avatar
 
Join Date: Aug 2013
Location: Monkey County
Posts: 4,710
Anxiously waiting for more stuffezez
babalou is offline   Reply With Quote
Old August 13th, 2019, 12:19 PM #6
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Biggfoot44 Biggfoot44 is offline
Senior Member
 
Join Date: Aug 2009
Posts: 18,530
Have to squeeze ( pun not intended ) inbetween working and sleeping .
Biggfoot44 is offline   Reply With Quote
Old August 13th, 2019, 01:03 PM #7
GuitarmanNick's Avatar
GuitarmanNick GuitarmanNick is offline
Member
 
Join Date: Jan 2017
Location: Laurel
Posts: 720
GuitarmanNick GuitarmanNick is offline
Member
GuitarmanNick's Avatar
 
Join Date: Jan 2017
Location: Laurel
Posts: 720
I have had good luck doing the "50 cent trigger job" to several of my ARs. Much smoother pull, clean consistent break, and reliable with mil-spec ammo as long as you do not cut the leg on the hammer spring. By making sure all of the pivot points and frictional surfaces were smooth, they now range from 4.25 to 4.75 pounds.

I did cut one leg of the hammer spring on a 9mm pistol build and the pull is 3.5 pounds. This is purely a range toy and would never be relied upon for defensive purposes. It is quite a hoot to shoot and more accurate than I had hoped. So far, it has functioned perfectly with the loads I have, but more testing with harder primers is in order.

With the above in mind, I carry unmodified trigger and hammer springs in my range bag at all times in case a problem is encountered.
GuitarmanNick is offline   Reply With Quote
Old August 13th, 2019, 02:31 PM #8
Boxcab's Avatar
Boxcab Boxcab is online now
MSI EM
 
Join Date: Feb 2007
Location: AA County
Posts: 5,665
Boxcab Boxcab is online now
MSI EM
Boxcab's Avatar
 
Join Date: Feb 2007
Location: AA County
Posts: 5,665
Tagging in....
__________________
Quote:
"I do find myself cursing the ghosts of the politicians and gun owners who let our 2nd Amendment rights degrade over the past century. Seven plus decades of being afraid to enthusiastically challenge any new ban against our gun rights has proven to be very foolish. Your rights will not preserve themselves; they must be pursued, secured and vigilantly maintained."
Boxcab is online now   Reply With Quote
Old August 13th, 2019, 05:20 PM #9
Magnumite Magnumite is offline
Senior Member
 
Join Date: Dec 2007
Location: Harford County, Maryland
Posts: 4,724
Magnumite Magnumite is offline
Senior Member
 
Join Date: Dec 2007
Location: Harford County, Maryland
Posts: 4,724
https://www.brownells.com/rifle-part...aspx?rrec=true

https://www.brownells.com/rifle-part...rod120770.aspx

Schmidt Tool and Machine...military supplier.
I bought one of each. Installed using stock disconnector, springs and pins. Smooth consistent pull. Mortar tested the hammer didn’t drop. Tested it with trigger pull gauge..about 4.5 pounds of pull weight.

I have dressed up stock single stage units to remove roughness. Sometimes I get good results. Sometimes a get what feels like a two stage trigger with a crisp release (lotsa creep). Studying the angles and relationships of the trigger and sear angles indicate the angles are the reason for the creep. Changing angles I don’t care for. So unless I want to go to one of the sear travel adjusting screws I would have to seek out other triggers. I really wasn’t looking for a trigger since I have NIW LaRue and Geiselle two stage units in the parts box. I prefer single stage for carbine applications. I stumbled across these on Brownells’ website and took a stab at it. For the cost tough to beat.
__________________
There are 1911 pistols and Ruger revolvers. Then there are the others..

Last edited by Magnumite; August 14th, 2019 at 07:55 AM.
Magnumite is offline   Reply With Quote
Old August 13th, 2019, 06:30 PM #10
dist1646 dist1646 is offline
Senior Member
 
Join Date: May 2012
Location: Eldersburg
Posts: 6,626
dist1646 dist1646 is offline
Senior Member
 
Join Date: May 2012
Location: Eldersburg
Posts: 6,626
I'll refrain from comment for now but...
dist1646 is offline   Reply With Quote
Reply

  Home Page > Forum List > Topics of Interest > Gunsmithing


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:40 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
2019, Congregate Media, LP Privacy Policy Terms of Service