Mods?
To make it shoot better?
To make it more user friendly?
To make it shiny and glittery and pretty to look at?
Shoot it first to see if it needs any mods for that. How will you know if it's the gun, the ammo or you? You need a plan to try different ammo and how to insure you don't factor into it. If it needs help with the groups then a match type barrel bushing should help some. For the back of the barrel there's the effort of finding the right oversized barrel link to help with lockup. Or, there used to be a part (assembly really) called a Dwyer Group Gripper. Odd thing that does the same thing and forces the barrel into the slide the same every time. It's a modified link with as ledge sticking out on the front. The replacement recoii spring guide has a flat spring sticking out the back. The flat spring catches against that ledge and pushes the back of the barrel fully up into the slide. Really helped my old Combat Commander.
What user friendly mods do you like? My first 1911 was a 1917 made 1911 Army pistol. I still prefer flat mainspring housings. I like the spur hammers on the full sized guns over the bobbed hammers. Nice sights are a plus. I'm fine with a set of magpul soft grips (but I like the CZ soft rubber grips, so that's not a surprise). I missed the safety on my Combat Commander once, at the range, and I installed a set of extended ambidextrous safeties. Never missed it again. I put them on all my 1911's (except that old Army 1911). I like a lanyard loop on the bottom of the mainspring housing, just in case (another thing I install on my CZs if they don't already have one out of the box.)
Shiny bling stuff? Nope, don't need it.
Good luck with it.
