Institutional momentum is a powerful thing in government, notice the lack of lights too when nearly every police officer has one.
Quietbore is also known as Creative Arms, an FFL/SOT who sells silencers.
I bet the change in posture is due to being a silencer manufacturer, while non-SOTs will have to make true cleaning products and leave the research and machining up to the buyer.
The key is a machine that uses R8 collets, they're the industry standard. Any collet design other than that will be a pain in the rear, and a machine that only uses a chuck is a toy.
DROs are also a huge step up in precision, you won't believe how you lived without them.
For removing lots of material with small machines, use roughing end mills. They're effectively serrated so they leave the work piece looking like crap but they cut aluminum like a hot knife through butter. You'll have to make another pass at the final dimension to give a nice finish.
And LEOs are regularly busted for dealing firearms without an FFL by taking orders from customers to purchase off- roster firearms and sell them as "used" guns for substantial profit.
Reliable only if ammo pointed right direction.
And Glocks.
Learned the hard way to not pick funky colors without her seeing me paint one...
It looks like it's from a bad video game.
I mean seriously, the gun splits in half to put the mag in.