This is what I came up with on my postal scale:
S&W 442 w/ Crimson Trace boot grips / 5 rounds of Speer 135gr. Gold Dot 17 oz.
Glock 43 w/ flush magazine / 7 rounds of Federal 147gr HST 21.6 oz.
Sig P365 w/ pinky extension magazine / 11 rounds of Federal 147gr HST 23.8 oz.
Ruger LCPII w/ flush magazine / 7 rounds of Double Tap 95gr JHP 13.1 oz.
Ruger LCP-MAX w/ flush magazine / 11 rounds of CCI 95gr. FMJ 14.6 oz.