I propose making the following "subpages" that would be linked to from the M1911 page:
- Kimber 1911s
- Dectonics 1911s
- Springfield Armory 1911s
- Para-Ordnance 1911s
Another thing that is very important to note, it will be essential that whoever does this splitting up (and I will certainly do a good portion of it), MUST also cross reference. Unfortunately a lot of the pages have the links in the bad style of "[[M1911 pistol series#Springfield Armory M1911 - A1|Springfield Armory M1911A1]]" instead of just "[[Springfield Armory M1911A1]]" with a redirect. This means that if the Springfield is moved, each of these links must be changed and this will be the responsibility of the person moving the given gun.
As a side note, this is EXACTLY why you should always use redirects...