My late sixties 41 had become too finicky to enjoy. Took it to a local gunsmith with no luck. Sent it to Clark for their "reliability" package. Told their gunsmith that if he could make it run like it should, I would like to add a Clark threaded STC barrel to my collection. He said he has never found a 41 that couldn't be cured. I am a believer. 300 rounds thru all three barrels without a hitch. Took 2 months to get bit it back, but it was worth the wait. The "field" barrel was cut down from a 7". Since I use a reflex sight on it, the lack of an front sight works for me. (79 year old eyes don't like iron sights). To me there is nothing like the feel and precision of a Model 41.