TriggerShims.Com

TriggerShims
General Shim Instructions

Rebellion Against Tyrants is Obedience to God
~ Benjamin Franklin ~

Manufacturer of
Trigger Shims Brand
American Made Gun Shims
- Home of -
TriggerShims.com
GunShims.com
ShivelySales.com
MichiganCenterOutdoors
SmallShims.com

America's Largest Gun Shim Company Since 2008

WWG1WGA

We Manufacture the Widest Selection of Gun Shims to be Found Anywhere on the Planet

100% American Family Owned

Shively Sales - Manufacturer of
TriggerShims Brand
Gun Shims
in
Michigan Center, Michigan

"Better to be poor and honest than to be dishonest and rich." Proverbs 28:6

Contact Us

~ Send Lance an Email ~

God Bless the U.S.A.

Measuring and Shim Installation Instructions

Ruger 10/22 Shim Installation Instructions Page Link

 These General Measurement Instructions Below are for Ruger Double Action Revolvers - GP100, SP101, RedHawk, Super Red Hawk and Alaskan, Security Six, Speed Six, and Police Service Six but generally apply to Most Firearms.

The easiest way to Measure your Trigger or Hammer assembly is with a simple blade type feeler gauge.
I sell a Nice U.S.A. Made set you can include in your orders.
It comes with a Manufacturers Lifetime Warranty
This 32 Blade Gauge will measure from .0015" up and is perfect for general use.
The price is $16.95 and includes Free Shipping

 These General Measurement Instructions are for Ruger Double Action Revolvers, but generally apply to Most Firearms.

 Trigger Shimming; Use the Feeler Gauge to Measure the Total Side Play
between One Side of the Trigger and the Frame. In this example there will be about .009” trigger side play, yours may vary.
Subtract .002” to .004" for Ending Clearance and divide the remainder by 2.
In the example of an .009” gap,  .009" - .003" (.002" to .004") =.006”;  .006"/2=.003”
Take two shim washers .003” thick and install them on both sides of the trigger.
This will serve as a bearing surface and will keep the trigger from moving sideways when pulled. It will reduce friction and force the Trigger to make a more uniform contact with the Hammer.
In the case of Trigger/Frame clearance of less than .006" a single .002" or .003" shim installed on the Left Side of the Trigger will give benefit to a Right Handed Shooter.
After installing the shims, make sure the trigger moves freely with No Binding.
I Do Not Recommend shimming tighter than .002" on the Trigger.

 Hammer Shimming;  With the Hammer Main Spring Removed to Relieve Tension,  Measure the Total Gap between

One Side of the Hammer and the Frame.
Unlike the Trigger, you will generally see a little more Clearance at the Hammer.
This Clearance allows the Hammer to Rub the Frame, Causing Drag.
Look at the Sides of the Hammer, if you see Arc-Like Scratches, it means the Hammer has been Dragging on the Frame.
This Reduces Hammer Thrust and Speed, and in Extreme Instances could cause Light Strikes. 
Installing a Shim at the Hammer’s Pivot Point Reduces Side Play, and adds a Bearing to Reduce Friction and Prevents the Hammer from Rubbing on the Frame.

Use the same formula for the Hammer as the Trigger.

Use the Feeler Gauge to measure the Total Side Play between one side of the Trigger and the Frame.
In this example there will be about .012" Hammer Side Play, yours may vary.
Subtract .002” to .004" for Ending Clearance and divide the remainder by 2.
In the example of an .014” gap, .014" - .004" (.002" to .004") =.010”; .010"/2=.005”
Take two shim washers .005” thick and install them on both sides of the Hammer.
The best way to do this is to install the Hammer then slide the Shim down the side of the Hammer.
Use a Feeler Gauge Blade to push the shim into position.

Barrel-Cylinder Gap and Endshake;
The gap between the back of the barrel and the front of the cylinder is known as the Barrel-Cylinder (B-C) gap. The Front-To-Back Movement of the Cylinder is the Endshake.
In order to properly measure these clearances you will need a Feeler Gauge Set. K-D Tools USA Made # 161 Deluxe Feeler Gauge is available all over the internet and at most good auto parts stores for under $10
To check B-C gap, hold the cylinder rearward and insert the (thickest that will fit) feeler between the Barrel and the Cylinder, this is your Barrel-Cylinder Gap, write it down, it should be between .004" and .008"
Next, hold the cylinder forward and re-check the gap, write it down.
There may be no clearance here at all, the cylinder may touch.
The difference between the two numbers is the amount of movement or Endshake your cylinder has, it should be between .001" and .004" on most Ruger Double Action Revolvers, other manufacturers clearances may vary
Our Cylinder Shims can be used to adjust your B-C Gap and Endshake.
Available in the following thicknesses; .002", .003", .004", .005", .006", .007", 008" and .009"

Kevin Wilson's Trigger Job Guide
Applies to all Large Frame Ruger
Double Action Revolvers Including;
SP101 / GP100 / SRH / Alaskan / Redhawk

We Cheerfully accept Cash, Money Order, and Credit Cards through our Secure PayPal Check-Out

All Website Orders are Shipped the Next Business Day

I will Ship Shims to USA, Canada and International

Gun Parts Shipped to USA Only

"American Made Gun Shims" - GunShims.com - TriggerShims.com
and
TriggerShims is a Trademark
of
Shively Sales
Michigan Center, Michigan

Copyright 2008 ~ 2022

God Bless and Make America Great Again!

BY PURCHASING SHIVELY SALES PRODUCTS
YOU ASSUME ALL RESPONSIBILITY FOR THEIR SAFE INSTALLATION AND USAGE.
YOU RETAIN ANY AND ALL RESPONSIBILITY FOR YOUR OWN ACTIONS. Be Safe!!

If you have any questions or safety concerns, see a qualified Gunsmith.

I manage this site myself, Please Report Any Website Problems to;
Lance at Webmaster@TriggerShims.com

Republic.... I like the sound of the word. It means people can live free, talk free, go or come, buy or sell, be drunk or sober, however they choose. Some words give you a feeling. Republic is one of those words that makes me tight in the throat - the same tightness a man gets when his baby takes his first step or his first baby shaves and makes his first sound as a man. Some words can give you a feeling that makes your heart warm. Republic is one of those words. - John Wayne in the Alamo