An Act to Prohibit the Sale or Possession of Rapid-fire Modification Devices
Maine Legislature, Session 131, LD 1340
Committee: Criminal Justice and Public Safety
Sponsors: SACHS, DAUGHTRY, BOYLE, CLOUTIER, DOUDERA, GRAMLICH, MADIGAN, MILLETT, WHITE, ZAGER
Amends: 17-A MRSA §1060

Legislative Document
No. 1340
H.P. 854
House of Representatives, March 28, 2023
An Act to Prohibit the Sale or Possession of Rapid-fire Modification 
Devices
Reference to the Committee on Criminal Justice and Public Safety suggested and ordered 
printed.
ROBERT B. HUNT
Clerk
Presented by Representative SACHS of Freeport.
Cosponsored by Senator DAUGHTRY of Cumberland and
Representatives: BOYLE of Gorham, CLOUTIER of Lewiston, DOUDERA of Camden, 
GRAMLICH of Old Orchard Beach, MADIGAN of Waterville, MILLETT of Cape Elizabeth, 
WHITE of Waterville, ZAGER of Portland.
Be it enacted by the People of the State of Maine as follows:
Sec. 1.  17-A MRSA §1060 is enacted to read:
§1060.  Possession of rapid-fire modification device
1.   As used in this section, unless the context otherwise indicates, the following terms 
have the following meanings.
A. "Binary trigger system" means a device that, when installed in or attached to a semi-
automatic firearm, causes the firearm to fire once when the trigger is pulled and again 
when the trigger is released.
B. "Bump stock device" means a device or instrument that increases the rate of fire 
achievable with a semi-automatic firearm by using energy from the recoil of the firearm 
to generate a reciprocating action that facilitates repeated activation of the trigger.
C. "Burst trigger system" means a device that, when installed in or attached to a semi-
automatic firearm, alters the trigger reset to allow the firearm to discharge 2 or more 
shots with a single pull of the trigger.
D. "Rapid-fire modification device" means a binary trigger system, bump stock device, 
burst trigger system, trigger crank or any other device that is designed to accelerate the 
rate of fire of a semi-automatic firearm.
E. "Semi-automatic firearm" means a firearm that is able to fire repeatedly through an 
automatic reloading process but requires release and another pull of the trigger for each 
successive shot.
F. "Trigger crank" means a device or instrument that repeatedly activates the trigger of 
a semi-automatic firearm through the use of a crank, lever or other part that is turned 
in a circular motion to accelerate the rate of fire of the firearm. "Trigger crank" does 
not include a firearm that is originally designed and manufactured to fire through the 
use of a crank or lever.
2.  A person is guilty of possession of a rapid-fire modification device if the person 
knowingly possesses, imports into the State or transfers, distributes, sells or gives to 
another person a rapid-fire modification device. 
3.  Possession of a rapid-fire modification device is a Class D crime.
SUMMARY
This bill makes the possession, transfer, distribution, sale or importation into the State 
of a rapid-fire modification device a Class D crime.  A rapid-fire modification device is a 
binary trigger system, bump stock device, burst trigger system, trigger crank or any other 
device that is designed to accelerate the rate of fire of a semi-automatic firearm.