mcarbo spring kit

Shadow9mm · July 5, 2020, 08:01 PM

Got and installed a M-carbo spring kit for my TC Compass trigger. It came with 2 main springs, one for hunting(drop safe) one for bench(not drop safe). Hunting is supposed to be 2.5lb, bench 1.5lb. I need to get a trigger pull gauge, however I am estimating 4lb after install with a very clean break. Now, I am happy with the clean 4ish lb pull. M-carbo lists the factory trigger at a 4.5lb pull weight, however the lowest I was ever able to adjust it to was in the 6.5lb range so it started out higher to begin with. Also They used a teflon grease on the sear engagement, I used a thicker oil. Between the 2 differences I am happy with how the trigger came out over all.

jpx2rk · July 6, 2020, 03:59 PM

I've got a mcarbo spring coming for my Ruger American, hoping it lightens the trigger pull to around 2#'s and eliminates the creep and inconsistent break I'm getting. Factory trigger really sucks.

lordmorgul · July 6, 2020, 11:58 PM

I put the Mcarbo benchrest spring into my TC Compass and it is an amazing improvement, I tightened up the adjustment range to make it stiffer since it started at 2lbs and I wanted a little more but it’s very smooth, crisp and light now. Well worth the money for it, saved me a lot of time messing around trying to find or trim to fit my own spring assortment to get it right.

The default on mine was the revised stock trigger.

Andrew - Lancaster, CA
NRA Life Member, CRPA member, Calguns.net contributor, CGF / SAF / FPC / CCRKBA / GOA / NAGR / NRA-ILA contributor, USCCA member - Support your defenders!

hooligan1 · July 7, 2020, 02:01 PM

I bought two for my Model 70's, one dropped the original weight from 4.5 lbs to an incredibly crisp 2.5 lbs.
However the other one went from a nice 3 lbs to 4.5lbs, imagine the look on my face...not sure what the ailment is yet, no time for disassembly lately.

Shadow9mm · July 7, 2020, 06:05 PM

Quote:

Originally Posted by lordmorgul

I put the Mcarbo benchrest spring into my TC Compass and it is an amazing improvement, I tightened up the adjustment range to make it stiffer since it started at 2lbs and I wanted a little more but it’s very smooth, crisp and light now. Well worth the money for it, saved me a lot of time messing around trying to find or trim to fit my own spring assortment to get it right.

The default on mine was the revised stock trigger.

Andrew - Lancaster, CA
NRA Life Member, CRPA member, Calguns.net contributor, CGF / SAF / FPC / CCRKBA / GOA / NAGR / NRA-ILA contributor, USCCA member - Support your defenders!

I'm really thinking about doing what you did and putting the bench spring in with 1 nut. I got a trigger pull gauge today and it is dead on at 4lb. its definitely and improvement, but its not the 2.5 I was hoping for. I just gotta make sure its drop safe.

lordmorgul · July 8, 2020, 12:20 AM

Quote:

Originally Posted by Shadow9mm

I'm really thinking about doing what you did and putting the bench spring in with 1 nut. I got a trigger pull gauge today and it is dead on at 4lb. its definitely and improvement, but its not the 2.5 I was hoping for. I just gotta make sure its drop safe.

I dropped mine several times and angles from waist to concrete to see that myself, and while not a standardized test and statistically relevant sample I’m confident it is not easily released by drop.

Andrew - Lancaster, CA
NRA Life Member, CRPA member, Calguns.net contributor, CGF / SAF / FPC / CCRKBA / GOA / NAGR / NRA-ILA contributor, USCCA member - Support your defenders!

July 5, 2020, 08:01 PM	#1
Shadow9mm Senior Member Join Date: March 21, 2012 Location: Indianapolis, IN Posts: 3,975	mcarbo spring kit Got and installed a M-carbo spring kit for my TC Compass trigger. It came with 2 main springs, one for hunting(drop safe) one for bench(not drop safe). Hunting is supposed to be 2.5lb, bench 1.5lb. I need to get a trigger pull gauge, however I am estimating 4lb after install with a very clean break. Now, I am happy with the clean 4ish lb pull. M-carbo lists the factory trigger at a 4.5lb pull weight, however the lowest I was ever able to adjust it to was in the 6.5lb range so it started out higher to begin with. Also They used a teflon grease on the sear engagement, I used a thicker oil. Between the 2 differences I am happy with how the trigger came out over all. __________________ I don't believe in "range fodder" that is why I reload. Last edited by Shadow9mm; July 5, 2020 at 08:06 PM.

July 7, 2020, 02:01 PM	#4
hooligan1 Senior Member Join Date: July 18, 2010 Location: Independence Missouri Posts: 4,586	I bought two for my Model 70's, one dropped the original weight from 4.5 lbs to an incredibly crisp 2.5 lbs. However the other one went from a nice 3 lbs to 4.5lbs, imagine the look on my face...not sure what the ailment is yet, no time for disassembly lately. __________________ Keep your Axe sharp and your powder dry.

July 6, 2020, 03:59 PM	#2
jpx2rk Senior Member Join Date: December 29, 2015 Posts: 387	I've got a mcarbo spring coming for my Ruger American, hoping it lightens the trigger pull to around 2#'s and eliminates the creep and inconsistent break I'm getting. Factory trigger really sucks.

July 6, 2020, 11:58 PM	#3
lordmorgul Senior Member Join Date: August 18, 2016 Posts: 206	I put the Mcarbo benchrest spring into my TC Compass and it is an amazing improvement, I tightened up the adjustment range to make it stiffer since it started at 2lbs and I wanted a little more but it’s very smooth, crisp and light now. Well worth the money for it, saved me a lot of time messing around trying to find or trim to fit my own spring assortment to get it right. The default on mine was the revised stock trigger. Andrew - Lancaster, CA NRA Life Member, CRPA member, Calguns.net contributor, CGF / SAF / FPC / CCRKBA / GOA / NAGR / NRA-ILA contributor, USCCA member - Support your defenders!