I managed to complete my collection of the SR series by adding the SR40 (used) and SR40C (new). My first SR was the 9E followed by the SR45 and SR9C. All guns (except the SR40C) have the Galloway Precision striker, striker block springs, striker indicator and recoil spring and guide rods. The magazine disconnects have been removed. The SR45 has a Powder River trigger, the others are factory stock. These guns are in my carry rotation. I'm one of those who can't understand why Ruger dropped the SR series but they are still out there new (Sportsman's Warehouse is posting the SR45 and SR40 at $249.99 as of May 2020). The 9E was plagued with light primer strikes and failures to load. The Galloway parts fixed that issue so I had their parts on-hand for the SR45, SR40 and SR9C before even taking possession. The SR40C has not been upgraded with Galloway parts but has not had any light strikes so I may just keep the striker assembly stock; however, the recoil spring and guide rod will likely be replaced. The Power River trigger in the SR45 does shorten the pull and reset but the factory stock triggers in the SR's are excellent and really don't need improvement. (See Hickok45's YouTube review of the SR9C regarding the trigger.) Unlike other 40 S&W caliber guns in my collection, the SR40 and SR40C don't have that "40 snap", they both feel like 9mm's, very impressive.