Oh, those cleaning/disassembly tools.
No.
M16 takes down with a bullet nose, barring live ammo handy we just used Scripto ink pens with the reinforced tip. The one thing that the civilian world and armorers make a big fuss about is cleaning the bolt tail - which bears on no other surface and has the distinction of being inside the gas expansion chamber that works as the piston assembly in the M16. Gas residue buildup on the tail is a matter of aesthetics and will not impede the function of the weapon. All those scrapers and toilet bolt brushes marketed to clean it basically are for the OCD owner who thinks a gun must be immaculately clean.
In practice, IN THE FIELD, the gun gets torn down daily, wiped down, reassembled and function checked. The major tool used is often the tail of your t shirt as cleaning supplies on patrol or at your bunk aren't plentiful. The issue of a cleaning kit and putting it in the buttstock trapdoor passed away decades ago. If you diligently tape or cover the muzzle for daily use, you keep the dust and mud out in the first place.
The aftermarket tools are made to sell, and they do, because they can. Not necessarily because you need one. This means you can basically do whatever you please. On patrol or in the box, you think twice about every ounce you carry and that tool will wind up in the bottom of the duffel bag as dead weight.
I haven't cleaned my AR's in 6 months, the last time was two years ago when my son and I got caught in a downpour. Running a patch down the bore was nice to get the water out, otherwise the next bullet down the barrel will clean it.
