Reduce That Heavy Trigger Pull From Stock to 1.5 lbs - 2 lbs Remove That Side To Side Factory Trigger Play Custom Trigger Return Spring Trigger Shims Fit Ruger American Bolt-Action Rifle with the Ruger Marksman Adjustable trigger including The Ruger American Rifle Generation II Reduce your trigger pull from a stock 3.5 - 5 lbs to a modified 1.5 lbs - 2 lbs Remove the unwanted factory trigger side to side play and provide a more precise fit for your trigger Improve accuracy and overall rifle performance Works for Ruger American Centerfires and Rimfires! Functions in all Ruger American Rifle Models and Calibers 100% reversible, you can set your trigger back to factory settings anytime Includes: 1 x Customer Trigger Spring 2 x Precision Flat Shims 2 x Necessary Installation Allen Wrenches 1 x Super Lube 1cc packet to help with the install 1 x Install Guideline TRIGGER PULL WEIGHT MEASURING DEVICE NOT INCLUDED ***NOTE: our spring will look different from the factory spring to allow for lighter trigger pull and easier installation!*** This Aftermarket Trigger Return Spring will give you a nice clean and crisp lighter trigger NOTE: Results may vary from Rifle to Rifle PLEASE READ Shipping Alert Currently The United State Postal Service are experiencing delays with some mail deliveries, due to the current environmental situation, office closures, volume of mail and lack of transportation. Mainly associated with but not limited to First Class They have indicated to us that in some cases it's taking a minimum of 10 business days Please note if your package is delayed, which can be seen from the tracking number we provide, please be patient as it's not our fault. Also we advise you to use the tracking system on the USPS website as it's more accurate and up to date. NOTE The average results of trigger pull measurements may differ by as much as +/- 1lb. There are many factors that can cause variations in trigger pull values, including differences in manufacturing processes, the age and wear of the firearm, and the method used to measure the trigger pull weight. No two firearms are exactly the same, and even firearms produced in the same year can have subtle variations. Additionally, the wear and usage of a firearm can affect the trigger pull, as the hammer and sear may become smoother and the spring may feel less stiff over time. It is important to use a reliable and accurate method, such as the Wheeler Professional Digital Trigger Pull Gauge, to measure trigger pull weights, and to take an average of multiple measurements to account for human error.