I don’t think there are firearms out there besides the 1911 and the AR15 that are ALWAYS customized.  It’s rare for me to find a firearm that is just a stock version.  There are quad rails, MOE rails, M-lok rails, Key-Mod.   With 1911s, there are so many slides, triggers, grips, extensions, magazine base plate, barrels and on and on.   There are ways to make these competition shooter guns or precision rifles, but there are always combat versions.   The 1911 isn’t going anywhere, even though there are high capacity firearms in 45acp like the Glock 21, but the accuracy and fun you get with 45acp for competition won’t disappear.

I’ve found that Wilson Combat Magazines always work best in my firearms but I keep it simple with ball ammo.  There are modifications to the throat of a 1911 that you can make to feed hollow point ammunition but I’ve only done that to one of my 1911s.   I consider the Wilson Combat 8rd Magazines to be “standard capacity” for my 1911s and don’t notice any reliability differences.   Many in the competition shooting world use the Wilson Combat 10rd magazines but I find extended magazines to be uncomfortable for CCW.   Extended magazines tend to get caught on clothing and are more likely to snag.   If you own a 1911, and you haven’t discovered Wilson Combat Magazines then think about adding them to your collection because they work.