AR15 Trigger Adjusters are made from 304 Stainless Steel. They replace the standard 1/4"-28 grip screw and have an internal set screw to adjust the trigger pull on your AR-15, AR-10 and S&W M&P22. The trigger adjuster helps eliminate pre-travel, creep and help reduce the pull weight on standard Mil-Spec trigger groups (usually about 9 pounds) and can be used with many aftermarket triggers as well. The trigger adjusters can be used alone or as part of a complete trigger job.
When adjusting the set screw you can not use a normal size short allen wrench. So if you don't have a long 6" 5/64" allen wrench key for adjusting the internal adjuster then you also need to order one of these: 6" Long 5/64 Allen Wrench