Currently mulling whether to go big bore vs. very high cap. while off duty and hung on several choices.

I usually just carry my issued G27 off duty, but would like a little larger hole/or more muzzle velocity/or lots more BBs on tap.

Due to a recent revision in department history, I'm told we were never allowed to carry 1911/SAOs off duty so am considering:

M&P .45 FDE manual safety regular or mid-size: Nice ergos, sufficient rounds on tap.

or G21SF: ammo pricey but relatively available for the .45s. Bit bigger than the Smith, but more big bullets.

or G20SF: ammo pricey and relatively difficult to obtain, but dang it I've always wanted one. A 16-shot .41 Magnum!

or just going for cheap ammo and hi cap and getting a G17 or 34.

Really just want to fool with a new pistol, but would like your input if you carry any or all of these guns OD or CCW.

Thank you.