New or modified gun law definitions:

"Additive manufacturing”, a process in which material is added to produce a product, including, but not limited to 3-dimensional printing.

''Ammunition'', cartridges or cartridge cases, primers (igniter), bullets or propellant powder designed for use in any firearm, rifle or shotgun. The term ''ammunition'' shall also mean tear gas cartridges.

"Antique firearm”, any firearm manufactured in or before 1899 and any replica of any such firearm if such replica: (i) is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition; or (ii) uses rimfire or conventional centerfire fixed ammunition that is no longer manufactured in the United States and that is not readily available in the ordinary channels of commercial trade. This includes any muzzle loading rifle, shotgun or pistol that is designed to use black powder, or a black powder substitute, and that cannot use fixed ammunition, except any weapon that incorporates a firearm frame or receiver, any firearm that is converted into a muzzle loading weapon, or any muzzle loading weapon that can be readily converted to fire fixed ammunition by replacing the barrel, bolt, breechblock, or any combination thereof.

''Assault-style firearm'', any firearm which is:

(a) A semiautomatic rifle with the capacity to accept a detachable feeding device and includes any of the following features: (i) a folding, telescopic, thumbhole or detachable stock or a stock that is otherwise foldable or adjustable in a manner that operates to reduce the length, size and other dimension, or otherwise enhances the concealability of the weapon; (ii) a pistol grip, forward grip or second handgrip or protruding grip that can be held by the non-trigger hand; (iii) a threaded barrel or (iv) a barrel shroud.

(b) A semiautomatic pistol with the capacity to accept a detachable feeding device and includes any of the following features: (i) the capacity to accept a feeding device that attaches to the pistol outside of the pistol grip; (ii) a second handgrip or a protruding grip that can be held by the non-trigger hand; (iii) a threaded barrel; (iv) a barrel shroud; (v) a manufactured weight of 50 ounces or more when unloaded; or (vi) a buffer tube, stabilizing brace or similar component that protrudes horizontally behind the pistol grip, and is designed or redesigned to allow or facilitate a firearm to be fired from the shoulder.

(c) A semiautomatic shotgun with the capacity to accept a detachable feeding device and includes any of the following features: (i) a folding, telescopic or detachable stock; (ii) a pistol grip or bird’s head grip; or (iii) a forward grip.

(d) The semiautomatic version of any fully automatic firearm.

(e) Any firearm listed on the assault-style firearm roster created pursuant to section 128A.

(f) All of the following rifles:

(i) All AK types, including the following: AK, AK47, AK47S, AK-74, AKM, AKS, ARM, MAK90, MISR, NHM90, NHM91, Rock River Arms LAR-47, SA85, SA93, Vector Arms AK-47, VEPR, WASR-10 and WUM, IZHMASH Saiga AK, MAADI AK47 and ARM, Norinco 56S, 56S2, 84S and 86S, Poly Technologies AK47 and AKS and SKS with a detachable feeding device;

(ii) All AR types, including the following: AR-10, AR-15, Alexander Arms Overmatch Plus 16, Armalite M15 22LR Carbine, Armalite M15-T, Barrett REC7, Beretta AR-70, Black Rain Ordnance Recon Scout, Bushmaster ACR, Bushmaster Carbon 15, Bushmaster MOE series, Bushmaster XM15, Chiappa Firearms MFour rifles, Colt Match Target rifles, CORE Rifle Systems CORE15 rifles, Daniel Defense M4A1 rifles, Devil Dog Arms 15 Series rifles, Diamondback DB15 rifles, DoubleStar AR rifles, DPMS Tactical rifles, DSA Inc. ZM-4 Carbine, Heckler & Koch MR556, High Standard HSA-15 rifles, Jesse James Nomad AR-15 rifles, Knight’s Armament SR-15, Lancer L15 rifles, MGI Hydra Series rifles, Mossberg MMR Tactical rifles, Noreen Firearms BN 36 rifle, Olympic Arms, POF USA P415, Precision Firearms AR rifles, Remington R-15 rifles, Rhino Arms AR rifles, Rock River Arms LAR-15, Sig Sauer SIG516 rifles and MCX rifles, Smith & Wesson M&P15 rifles, Stag Arms AR rifles, Sturm, Ruger & Co. SR556 and AR-556 rifles, Uselton Arms Air-Lite M-4 rifles, Windham Weaponry AR rifles, WMD Guns Big Beast, Yankee Hill Machine Company, Inc. YHM-15 rifles;

(iii) Barrett M107A1 and M82A1;

(iv) Beretta CX4 Storm;

(v) Calico Liberty Series;

(vi) CETME Sporter;

(vii) Daewoo K-1, K-2, Max 1, Max 2, AR 100 and AR 110C;

(viii) Fabrique Nationale/FN Herstal FAL, LAR, 22 FNC, 308 Match, L1A1 Sporter, PS90, SCAR and FS2000;

(ix) Feather Industries AT-9;

(x) Galil Model AR and Model ARM; 

(xi) Hi-Point Carbine;

(xii) HK-91, HK-93, HK-94, HK-PSG-1 and HK USC; 

(xiii) IWI TAVOR, Galil ACE rifle;

(xiv) Kel-Tec Sub 2000, SU-16 and RFB;

(xv) SIG AMT, SIG PE-57, Sig Sauer SG 550, Sig Sauer SG 551 and SIG MCX;

(xvi) Springfield Armory SAR-48;

(xvii) Steyr AUG;

(xviii) Storm, Ruger & Co. Mini-14 Tactical Rifle M-14/20CF; 

(xix) All Thompson rifles, including the following: M1SB, T1100D, T150D, T1B, T1B100D, T1B50D, T1BSB, T1-C, T1D, T1SB, T5, T5100D, TM1, TM1C;

(xx) UMAREX UZI rifle;

(xxi) UZI Mini Carbine, UZI Model A Carbine and UZI Model B Carbine;

(xxii) Valmet M62S, M71S and M78;

(xxiii) Vector Arms UZI Type;

(xxiv) Weaver Arms Nighthawk; and

(xxv) Wilkinson Arms Linda Carbine.

(g) All of the following pistols:

(i) All AK types, including the following: Centurion 39 AK pistol, CZ Scorpion pistol, Draco AK-47 pistol, HCR AK-47 pistol, IO Inc. Hellpup AK-47 pistol, Krinkov pistol, Mini Draco AK-47 pistol, PAP M92 pistol and Yugo Krebs Krink pistol;

(ii) All AR types, including the following: American Spirit AR-15 pistol, Bushmaster Carbon 15 pistol, Chiappa Firearms M4 Pistol GEN II, CORE Rifle Systems CORE15 Roscoe pistol, Daniel Defense MK18 pistol, DoubleStar Corporation AR pistol, DPMS AR-15 pistol, Jesse James Nomad AR-15 pistol, Olympic Arms AR-15 pistol, Osprey Armament MK-18 pistol, POF USA AR pistols, Rock River Arms LAR 15 pistol and Uselton Arms Air-Lite M-4 pistol; 

(iii) Calico pistols; DSA SA58 PKP FAL pistol; Encom MP-9 and MP-45; 

(iv) Heckler & Koch model SP-89 pistol;

(v) Intratec AB-10, TEC-22 Scorpion, TEC-9 and TEC-DC9; 

(vi) IWI Galil Ace pistol, UZI PRO pistol

(vii) Kel-Tec PLR 16 pistol; 

(viii) All MAC types, including the following: MAC-10, MAC-11, Masterpiece Arms MPA A930 Mini Pistol, MPA460 Pistol, MPA Tactical Pistol and MPA Mini Tactical Pistol, Military Armament Corp. Ingram M-11 and Velocity Arms VMAC;

(ix) Sig Sauer P556 pistol;

(x) Sites Spectre;

(xi) All Thompson types, including the following: TA510D and TA5; 

(xii) All UZI types, including Micro-UZI.

(h) All of the following shotguns:

(i) DERYA Anakon MC-1980, Anakon SD12;

(ii) Doruk Lethal shotguns;

(iii) Franchi LAW-12 and SPAS 12;

(iv) All IZHMASH Saiga 12 types, including the following: Saiga 12, Saiga 12S, Saiga 12S EXP-01, Saiga 12K, Saiga 12K-030, Saiga 12K-040 Taktika;

(v) Streetsweeper; and

(vi) Striker 12.

(i) Any shotgun with a revolving cylinder.

(j) All belt-fed semiautomatic firearms, including TNW M2HB and FN M2495.

(k) a copy or duplicate of any firearm listed or meeting the standards of sections (a) to (f), inclusive, that was manufactured or subsequently configured with an ability to accept a detachable magazine, and:  (i) its internal functional components are substantially similar in construction and configuration to those of an enumerated weapon; or  (ii) it has a receiver that is the same as or interchangeable with the receiver of an enumerated weapon.  

(l) The term shall not include: (i) any of the firearms, or replicas or duplicates of such weapons lawfully possessed on September 13, 1994; (ii) any weapon that is operated by manual bolt, pump, lever or slide action.

"Automatic conversion”, any modification made to a firearm or any part capable of being attached to a firearm that allows for the automatic discharge of a number of shots or bullets with one continuous activation of the trigger.

“Automatic part”, any part capable of being attached to a firearm that allows for the automatic discharge of a number of shots or bullets with one continuous activation of the trigger.

“Barrel”, the tube through which a projectile or shot charge is fired.

“Bona Fide Collectors of Firearms”, an individual who acquires firearms for such lawful purposes as historical significance, display, research, lecturing, demonstration, test firing, investment or like purpose. The acquisition of firearms for sporting use or for use as an offensive or defensive weapon shall not qualify an applicant as a bona fide collector of firearms. An individual licensed pursuant to 18 U.S.C. C. 44 s. 923(b) shall be deemed a bona fide collector of firearms for purposes of this chapter.

"Common long gun”, a rifle or shotgun that is not large capacity and cannot produce semiautomatic or automatic fire.

"Covert firearm”, a firearm that is not a stun gun, capable of discharging a bullet or shot, that is constructed in a shape that does not resemble a firearm or is not immediately recognized as a firearm, including, but not limited to zip guns, concealed bolt guns, folding guns and any other weapon that resemble key-chains, pens, canes, wallets, flashlights, cigarette-lighters or cigarette-packages, flare guns, pellet guns and bb gun conversion kits and camouflaging firearm containers.

“Curio or relic firearms”, firearms which are of special interest to collectors because they possess some qualities not ordinarily associated with firearms intended for sporting use or as offensive or defensive weapons.

''Deceptive firearm device'', any device that is intended to convey the presence of a firearm that is used in the commission of a violent crime, as defined in this section, and which presents an objective threat of immediate death or serious bodily harm to a person of reasonable and average sensibility.

"Downloadable gun code”, digital instruction in the form of computer-aided design files or other code or instructions stored or displayed in electronic format as a digital model that may be used to manufacture or produce a firearm, firearm receiver, feeding device or firearm component using additive manufacturing.

“Feeding device”, any magazine, belt, strip, drum or similar device that holds ammunition for a firearm, whether fixed or detachable from a firearm.

"Fire control component”, part(s) designed to hold back the hammer, striker, bolt or similar primary energized part prior to initiation of the firing sequence in a firearm.

''Firearm'', a weapon, including but not limited to a stun gun, pistol, revolver, rifle, shotgun, sawed-off shotgun, assault-style firearm and machine gun, loaded or unloaded, which is designed to or may readily be converted to expel a shot or bullet; the frame or receiver or the barrel of any such weapon; provided, however, that the term firearm shall not include any antique firearm or permanently inoperable firearm.

“Firearm part”, any element or replacement element specifically designed for a firearm and essential to its operation, including a barrel, frame or receiver, slide or cylinder, bolt or breech block.

"Fixed magazine”, an ammunition feeding device contained in, or permanently attached to, a firearm in such a manner that the device cannot be removed without disassembly of the firearm action.

"Frame or receiver”, part of a firearm that provides the housing or structure designed to hold or integrate one or more fire control components, even if pins or other attachments are required to connect those components to the housing or structure.

''Large capacity feeding device'', (i) a fixed or detachable magazine, belt, drum, feed strip or similar device that has a capacity of, or that can be readily converted to accept, more than 10 rounds of ammunition or more than 5 shotgun shells; or (ii) any part or combination of parts from which a device can be assembled if those parts are in the possession or control of the same person. The term shall not include: (i) any device that has been permanently altered so that it cannot accommodate more than 10 rounds of ammunition or more than 5 shotgun shells; (ii) an attached tubular device designed to accept, and capable of operating only with, .22 caliber rimfire ammunition or (iii) a tubular magazine that is contained in a lever-action firearm.

''Large capacity firearm'', any firearm that: (i) is semiautomatic with a fixed large capacity feeding device; (ii) is semiautomatic and capable of accepting, or readily modifiable to accept, any detachable large capacity feeding device when both are in the same person’s possession or under their control in a vehicle; (iii) employs a rotating cylinder capable of accepting more than 10 rounds of ammunition  or more than 5 shotgun shells; or (iv) that is an assault-style firearm. The term ''large capacity firearm'' shall be a secondary designation and shall apply to a weapon in addition to its primary designation as a firearm, and shall not include: (i) any firearm that operates by manual bolt, pump, lever or slide action; (ii) any firearm that is a single-shot weapon; (iii) any firearm that has been modified so as to render it permanently inoperable or otherwise rendered permanently unable to be designated a large capacity firearm; or (iv) any firearm that is an antique or relic, theatrical prop or other weapon that is not capable of firing a projectile and which is not intended for use as a functional weapon and cannot be readily modified through a combination of available parts into an operable large capacity firearm.

"Manufacture or assemble”, to (i) fabricate, make, form, produce, or construct, by manual labor or by machinery, a firearm; or (ii) fit together a firearm’s component parts. Does not include making or fitting special barrels, stocks, or trigger mechanisms to firearms.

“Nonresident”, a person who is temporarily in Massachusetts but legally resides in another state or territory of the United States.

“Permanently embedded”, applied in such a way that cannot be easily or readily removed without destroying the part to which it is applied.

“Petition”, as used in sections 131 to 131G, inclusive, a request filed with the court by a petitioner for the issuance or renewal of an extreme risk protection order.

''Petitioner'', as used in sections 131 to 131G, inclusive: (i) a family or household member; (ii) a law enforcement agency or officer, as defined in section 1 of chapter 6E; (iii) a licensed physician, registered nurse, licensed practical nurse, certified nurse practitioner, certified clinical nurse specialist, certified psychiatric clinical nurse specialist, licensed psychiatrist, licensed psychologist, licensed mental health counselor, licensed marriage and family therapist, licensed independent clinical social worker, or licensed certified social worker who has provided health care services to the respondent within the preceding 6 months; (iv) an administrator of a elementary school, secondary school, college, university or other educational institution where the respondent is enrolled; or (v) an employer of the respondent.

“Privately made firearm”, a firearm manufactured or assembled by an individual who is not a licensed manufacturer.

''Respondent'', as used in sections 131 to 131G, inclusive, the person identified as the respondent in a petition against whom an extreme risk protection order is sought.

"Secured in a locked container”, at a minimum the container must be capable of being unlocked only by means of a key, combination or similar means and it must be able to deter all but the most persistent from gaining access. A room or a store even if capable of being locked and surveilled is insufficient.

“Self-defense spray”, chemical mace, pepper spray or any device or instrument which contains, propels or emits a liquid, gas, powder or other substance designed to incapacitate.

SECTION 44. Said section 121 of said chapter 140, as so appearing, is hereby further amended by inserting, after the definition of “semiautomatic”, the following definitions: -

“Serial number”, a unique identifying number provided by a government entity.

“Serialization”, the process of conspicuously engraving, casting or otherwise permanently stamping a unique serial number on a firearm frame or receiver or firearm barrel. The serial number must be placed in a manner not susceptible of being readily obliterated, altered or removed and must be engraved, cast or stamped to a minimum depth of .003 inch and in a print size no smaller than 1/16 inch.  Serialization of firearms, frames and receivers made from non-metallic materials must be accomplished by using a metal plate permanently embedded in the material of the frame or receiver.

“Trigger modifier”, any modification that repeatedly activates the trigger of a firearm including but not limited to trigger cranks, binary triggers and hellfire triggers.

“Undetectable firearm”, a firearm that, after the removal of grips, stocks, and magazines, is not detectable by walk-through metal detectors calibrated and operated to detect the security exemplar defined in 18 U.S.C. Section 922(p)(2)(C), or a major component of a firearm that, when inspected by detection devices commonly used at secure public buildings and transit stations, does not generate an image that accurately depicts the shape of the component.

“Untraceable firearm”, a firearm that has not been serialized by a government entity or a firearm on which a serial or other identification number has been removed, defaced, altered, obliterated or mutilated in any manner.

''Weapon'', any rifle, shotgun or firearm.

Where the local licensing authority has the power to issue licenses or cards under this chapter, but no such licensing authority exists, any resident or applicant may apply for such license or firearm identification card directly to the colonel of state police and said colonel shall for this purpose be the licensing authority.

''Weapon'', any rifle, shotgun or firearm.

Where the local licensing authority has the power to issue licenses or cards under this chapter, but no such licensing authority exists, any resident or applicant may apply for such license or firearm identification card directly to the colonel of state police and said colonel shall for this purpose be the licensing authority.

Sections 122 to 129D, inclusive, and sections 131, 131A, 131B and 131E shall not apply to:

(A) any firearm, rifle or shotgun manufactured in or prior to the year 1899;

(B) any replica of any firearm, rifle or shotgun described in clause (A) if such replica: (i) is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition; or (ii) uses rimfire or conventional centerfire fixed ammunition which is no longer manufactured in the United States and which is not readily available in the ordinary channels of commercial trade; and

(C) manufacturers or wholesalers of firearms, rifles, shotguns or machine guns.

"Personalized firearm", a firearm manufactured with incorporated design technology or converted with such technology so that it: (i) allows the firearm to be fired only by the authorized user(s); or (ii) prevents any of the safety characteristics of the firearm from being readily deactivated.

“Microstamp”, a microscopic array of characters identifying the make, model, or serial number of a firearm, etched or otherwise imprinted in 2 or more places on the interior surface or the internal working parts of the firearm, that are transferred by imprinting on each cartridge case when the firearm is fired.