I recently purchased a S&W 686 4" revolver. I am attempting to purchase a holster and speed loaders for it but I am not sure if it is classified as a 'K' or 'L' frame? I am looking at the Safariland Custom Fit 567 Holster along with the Safariland Speed Loader Holder and Speedloaders.....but I can't determine how they classify this gun. Is it a 'K' frame or is it an 'L' frame? Thanks for the help. Oh, the gun shoots wonderfully. It is so smooth, the trigger is fabulous, and it is dead nuts on hitting the target. I love it and want to shoot it more. I plan to shoot it in the local IDPA matches.