The only reason Glock has such a following for gun parts is everyone is forgetting about the Glock being in military or police forces who are required to have them.

No US gun company can compete what Glock is marketing upon these organizations. Glock will undercut each and every time just to keep their guns out there, which means those organizations must have parts for repairs available to their armorers, so they flood the market with accessories, parts and backup.

Glock is today's version of owning a 1911 model of gun. Lots of parts that fit from one to another no matter the year(if it's made to specs). Military and police usage during this time of gotta have a 45 "to stop it in its tracks" thinking. Bullet penetration also played a role in changes of calibers while manufacturers didn't have that caliber in their lineup and Glock stepped in and the rest is, we've got you by the short hairs.

So while all US manufacturers now have the calibers needed/wanted, they don't have the pricing or model styles that these departments are willing to pay for, or enough manufacturing hands to build and back up the products. It's a catch 22 situation and Glock filled the need everyone had to have.

Del