Free trigger mod, -2lbs! - XDTalk Forums - Your HS2000/SA-XD Information Source!

XDanthony · 03-04-2008, 09:38 PM

Edit: As a special someone pointed out, that I forgot to include where my measurement was taken from. And to keep things in order I used the same intersect of the red line and trigger as pictured bellow that I used in my other post. As a couple tests from the bottom of the trigger the results were one pound less, resulting in 3 to 3.2lbs

Notes:
Digital scale.
10 tests total; 5 before, 5 after.
Follow "PHOTO" link in sig for current modifications.

Mod:
Polish everything that moved including pins to a shine (320, 400, 600, 1200, 1500 sandpaper).

Used a torch and heated up the stock trigger spring, also using a digital scale i was able to weaken the spring by 25-30%. To do this you must let the spring cool at a very slow rate. I did this twice and tried not to go overboard.

Data:

Before:
6.3
6.5
6.4
6.2
6.6
6.2
6.366667 = AVG

After:
4.3
4.2
4.0
4.1
4.3
4.3
4.2 = AVG

Difference: -2.16667

Also as you can see and i felt the trigger pull to be more consistant. Sorry no pics, camera is at my moms house.

Also see for more trigger info: Data: My PRP Trigger

And a funny "note to self" when you see the gauge going up to 12lbs and no trigger action remember to push the rear safety lever in.

I left the sear spring alone for now, until next time thanks for looking.

**KCXPSS** · 03-04-2008, 10:08 PM

OMG... awesome...

jeepinbanditrider · 03-04-2008, 10:21 PM

Nice don't forget to keep an eye out for corrosion on those polished parts. All the sanding and polishing could have removed enough metal to take the metal treatment off.

XDanthony · 03-04-2008, 10:40 PM

Quote:

Originally Posted by jeepinbanditrider

Nice don't forget to keep an eye out for corrosion on those polished parts. All the sanding and polishing could have removed enough metal to take the metal treatment off.

Yup! That is the plan. I was going to drop them off tomorrow to have them treated. But I am going to the range after work. So i might as well see how they old up!

ckuplent · 03-05-2008, 08:01 AM

hehe, I just polished everything up in preperation of my safety lever from the GB.

ichy_trigger · 03-05-2008, 09:38 AM

I would NOT mess with the temper on the sear spring. If it gets too light, it will not let the disconect reset correctly. I had one that shot fine with WWB but as soon as you shoved a +P in there, the slide speed was too fast for the sear spring and the trigger did not reset realiably. There is a very fine line with the sear spring weight.

PM me for another meathod thats free on reducing the sear spring weight.

03-04-2008, 09:38 PM	#1
XDanthony XDTalk 100 Member Join Date: Feb 2008 Posts: 235	Free trigger mod, -2lbs! Edit: As a special someone pointed out, that I forgot to include where my measurement was taken from. And to keep things in order I used the same intersect of the red line and trigger as pictured bellow that I used in my other post. As a couple tests from the bottom of the trigger the results were one pound less, resulting in 3 to 3.2lbs Notes: Digital scale. 10 tests total; 5 before, 5 after. Follow "PHOTO" link in sig for current modifications. Mod: Polish everything that moved including pins to a shine (320, 400, 600, 1200, 1500 sandpaper). Used a torch and heated up the stock trigger spring, also using a digital scale i was able to weaken the spring by 25-30%. To do this you must let the spring cool at a very slow rate. I did this twice and tried not to go overboard. Data: Before: 6.3 6.5 6.4 6.2 6.6 6.2 6.366667 = AVG After: 4.3 4.2 4.0 4.1 4.3 4.3 4.2 = AVG Difference: -2.16667 Also as you can see and i felt the trigger pull to be more consistant. Sorry no pics, camera is at my moms house. Also see for more trigger info: Data: My PRP Trigger And a funny "note to self" when you see the gauge going up to 12lbs and no trigger action remember to push the rear safety lever in. I left the sear spring alone for now, until next time thanks for looking. __________________ - Anthony (myspace.com/_avs) AR-15: (build in progress) Lower: DSC Star-15 w/ DSC LPK Upper: (?) Furniture: ACE ARFX-E MRI Baby Eagle Pistol 9x19mm SA XD V-10 .40S&W Made custom by: Powder River Precision Details & Pictures Last edited by XDanthony; 03-04-2008 at 11:46 PM.

03-04-2008, 10:08 PM	#2
KCXPSS XDTalk 500 Member Join Date: Jan 2008 Location: Lancaster, PA (Millersville) Posts: 541	OMG... awesome... __________________ XD-C .45 ACP 17+1 NRA Member LEAA Member PA LTCF Myspace

03-04-2008, 10:21 PM	#3
jeepinbanditrider XDTalk 4K Member Join Date: Jan 2007 Location: Mineral Wells, Tx Posts: 4,836	Nice don't forget to keep an eye out for corrosion on those polished parts. All the sanding and polishing could have removed enough metal to take the metal treatment off. __________________ Stuff USPSA-A59201

03-05-2008, 09:38 AM	#6
ichy_trigger XDTalk 5K Member Join Date: Jan 2004 Location: Dayton, Ohio Posts: 7,525	I would NOT mess with the temper on the sear spring. If it gets too light, it will not let the disconect reset correctly. I had one that shot fine with WWB but as soon as you shoved a +P in there, the slide speed was too fast for the sear spring and the trigger did not reset realiably. There is a very fine line with the sear spring weight. PM me for another meathod thats free on reducing the sear spring weight. __________________ "The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." http://militarysignatures.com/signatures/member2645.png

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03-05-2008, 08:01 AM	#5
ckuplent XDTalk 100 Member Join Date: Feb 2008 Location: Hippytown, Oregon Posts: 146	hehe, I just polished everything up in preperation of my safety lever from the GB.