Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit

I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.

I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.

I have a Ruger 77 Hawkeye Compact in .308 Winchester. I ordered the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit. This was an improvement by all measures. My trigger pull prior measured on a Lyman Trigger Pull Gage averaged 4.2125 pounds. Adding the kit spring alone my trigger pull average was reduced to 3.087 pounds. A reduction of 1.1255 pounds! Sooo much better! The PTFE Superlube added to the sear seem to help too. I bought this after spending $91 on a Rifle Basix "drop in" trigger that was not a good fit and perhaps even, in my experience, unsafe. I reinstalled the factory trigger and added the M*Carbo Trigger kit. Problem solved.

M carbo does it again great parts fast shipping for guns that need to be worked price awesome I just wish they carried more parts for different guns. I’d recommend these people to everybody. Thanks again may God bless you all.

Anyone can tell you that Ruger m77/22 bolt bodies have plenty of manufacturing tolerance. This shim kit is absolutely perfect for getting everything dialed in. Mine took .003 worth of the shims. After 100 rounds of testing, I haven't had a single light primer strike (was getting about 5-6 per hundred before), and my 3 shot group size tightened up 3/8 of an inch on average to put them all well under MOA. The lighter weight trigger spring should have been factory. It feels fantastic in comparison. It shaved about 2lb off the pull weight. Thanks MCARBO for improving the quality of my life!

This kit addresses two of the several issues that the 77/22 and like models have .
These triggers from the factory are safe in design as no way to adjust pull weight or sear engagement period so being stuck with uneven surfaces tool marks ect on the trigger and sear as well as a full sear engagement some of these models might not see a huge improvement and some will mine was reduced by 12 oz and was very consistent in the measurements and by polishing the mating surfaces between sear and trigger and removing the rough finish I might have increased the surfaces touching each other causing the lack of reduction in pull weight that some have experienced.
With that said the kit does reduce pull weight.
In my experience with the wood stocked models the main issue with accuracy with these Rugers has been rifle bedding or lack of , if You doubt this assessment free float the barrel then You will quickly see this as all of the bedding is the barrel touching the barrel channel and no where else as the inletting for the action area is way to generous for the best accuracy

I just finished installation of the trigger spring/shim kit in my Ruger 77/357. It went very well. Trigger pull was reduced by about 40% and the shim took out the sloppiness in the bolt. I’m very pleased. Easy to do and highly recommend.

I recently purchased a spring kit for my Ruger model 77/22. The package arrived just as advertised. I'd watched the video a few times and I followed the instructions and it went in just as shown. The only thing extra I'd bought was a 3/32 punch but the pin was not that difficult to remove. I didn't get the 2lbs reduction in pull weight that was in the video but it was enough of a reduction to enable me to get the best group I've ever been able to get with this rifle.