There are several type of Class 3 items that are restricted by the National Firearms Act.
Each state can impose additional restrictions on the sale, purchase, and transfer of class 3 firearms in addition to the compliance that is required with the national Firearms Act.
In Connecticut you can own the following items that are regulated the the National Firearms Act
Machine GunsIn Connecticut you cannot own the following NFA restricted items.
Silencers
Any Other Weapon (AOW)
Destructive Devices (DD)
Short Barreled Shotguns (SBS)
Short Barreled Rifles (SBR)
None
Follow this link to find out more about Connecticut and NFA restrictions on Class 3 Firearms
Note Connecticut does not allow select fire machine guns. Only fully automatic machine guns are allowed.
