trailer, the hammer/trigger assembly I bought from Cabela's is not from Valquarsten. I bought the one thats listed as "10/22 Competition Match hammer and sear kit" that sells for 55 bucks. It was simple to install and I'm well pleased with it. I'm not taking away from Valquarsten. I have some of their upgrades on my Ruger MKII pistol and its good stuff, but I can't see the $145 difference in the two hammer assemblies for the 10/22. Just my .02.