I have carried my Mitchell .45 bull barrel/full throat support for 20 years. The takedown needs a bent paper-clip into a hole in the spring guide; but then breaks down into the barrel assembly, slide, and receiver for simple cleaning. This was made only briefly back when Mitchell tried to buy a niche in the Gov't market. Has other race gun features. Extremely accurate.
The LC9s fits exactly in the Don Hume H715 M NO. 40FS-1 IWB open top molded leather holster meant for the S&W Signa 9, easy re-holstering. However, the retention is friction, not positive; and the clip, though pretty secure, does not have a positive U-bend.