The Fortis Manufacturing Control Shield Muzzle Device can be mounted to the Kel Tec PLR-16 using the muzzle device at the link below.
https://www.opticsplanet.com/rainier-arms-xtreme-tactical-compensator-xtc-mod2-223-5-56.html
The Fortis Manufacturing Control Shield Muzzle Device is compatible with the Fortis Manufacturing Muzzle Brakes and the Rainier Arms XTC 2.0. It will not work with an A2 Bird Cage Flash Hider.
Yes, the Fortis Manufacturing Control Shield Muzzle Device will work for rifles chambered in .223/5.56. However, the Fortis Manufacturing Control Shield Muzzle Device can only be attached using the Fortis Manufacturing Muzzle Brake or Ranier Arms XTC 2.0.
The Fortis Manufacturing Control Shield Muzzle Device will not currently work with a 300 Blackout. The Fortis Manufacturing Control Shield Muzzle Device attaches to either the Rainier Arms XTC 2.0 or Fortis Manufacturing Muzzle Brake. Currently those muzzle brakes are only compatible with 5.56.
This blast shield requires one of their own muzzle devices for mounting. As long as the .30 caliber muzzle device fits to your barrel, it would be able to be used with it.
Yes, it will work with the other caliber Fortis muzzle devices.
This is not a threaded muzzle device. This shield fits onto muzzle devices that use their attachment system.
Yes, this shield will fit the Fortis 9mm brakes.
Yes, that muzzle device should work with this blast shield.
The distance would only be about 1/8" - 1/4" beyond the muzzle device.