Anyone have any info on the earlier barrels (some say Colt 45) that came in some of the earlier CMs. I have saw some that were press fitted with a sleeve to make them fit the slide. I have heard rumor that these sleeves had some sort of lock-tite applied and as the guns were fired over a period of time that the barrel could heat and loose its press fit and cause damage. Any info would be greatly appreciated. Thanks, Brad