Approved Safety / Locking Devices

M.G.L. c. 140, § 131K requires that any firearm or large capacity weapon sold within the Commonwealth must be sold with a safety device designed to prevent the discharge of such weapon by unauthorized users. The following safety/locking devices have been approved by the Colonel of the Department of State Police as complying with the provisions of M.G.L. c. 140, § 131K :

1 CCL Sesamee Gun Blok Combination Lock 2 Master Lock: Cable Key Lock or Guard Lock 3 Outer/Cease Fire Trigger Lock 4 Shot Lock Corp. Keyed Cable Lock or Trigger Guard Lock 5 Speed Release Gun Lock 6 Dominion Group Trigger Lock 7 Remington Trigger Lock 8 Mossberg Cable Lock 9 American Council Cable Lock 10 Rocky Mountain Tool and Armory Chamber-Safe 11 Saf T Lock’s Lock 12 Franzen Trigger Combination Lock 13 Noble Guard Wall Mount Gun Lock 14 Noble Trigger Lock 15 Noble Double Security Cable Gun Lock 16 Central Specialties Trigger Lock Model 9311 17 Crown Trigger Lock 18 Miltex Inc. Trigger Lock 19 Concept Development Corp. / Law Lock Key Cuff Trigger Lock 20 Concept Development Corp. / Trigger Block Safety in Conjunction with the Saf-T-Block Combination Lock 21 A. Rifkin Company Arcolock – 7 Keyed Lock Model 22 Armloc Magnum ( Safety System) Combination Lock Container 23 Franzen Model 6.0 Combination Cable Lock 24 Franzen Keyed Trigger Lock 25 Concept Development Corp. Law Lok III, Key Cuff Trigger Lock 26 Bell Trigger Lock Model B100KA 27 Bellock Model #B300-8ka Cable Key Lock 28 Bellock Economy Trigger Lock Model #B200-3 29 CCL Security Products Model K-39 Trigger Blok (keyed) 30 CCL Security Products Model CA12 Sesamee Cablelock (combination) 31 Palmer Security Products Model/Series 5000, 54500, 6000, 7000, 8100, 9000, Push Button Lock / Key Systems 32 Steyer M-Series Integrated Limited Access Lock with Key 33 Armadillo Gun Trigger Lock (keyed) 34 Master Lock: Combination Gunlock 35 Taurus International – Hammer Key Lock 36 Mossberg Safe Systems Inc. Portable Electronic Firearm Safe 37 Life Jacket by Mogul Company 38 Saf-T-Trigger 39 DAC Technologies Items: MTL, LHL, TVP, GL001, CL200, CL100 40 UNEX Keyed Trigger Lock and Keyed Cable Lock 41 Alarm It w/ Cable Lock 42 Smart Trigger Lock with Alarm 43 Maximum Security Cable Lock 44 Regal Keyed Cable Lock Model SL14-4PTACA 45 Project HomeSafe Cable Lock 46 Omega Safety Systems Internal Chamber Lock 47 Project Child Safe Cable Lock w/ Key 48 Regal Keyed Cable Lock Model DCSC-5-DTACA14 49 VisualLock (Special Keyed Lock) 50 CABLE LOCK (NAD Corporation, Worcester, MA) 51 CHILD GUARD (Child Guard LLC, Lancaster, PA) 52 Regal Industrial Sales: Models R11SC3, R14CBS3, R15SCA, R15SC3, R15SC3-01, R15LC1, R15LC3, R38LASC3, R38LASC3-NC, R38LALC3, R60SC3, R60LC3, RTL06, M2006, M2007J 53 Firearms Safety Devices Corporation: Models FSDC CL1010BKD, CL1020RKD, CL1335BKD, CL1335RKD, CL1070BKD, CL1070RKD, CL1095BKD, CL1095RKD, CL1145BKD, CL1145RKD, CL1250BKD, CL1250RKD, CL1335BKD, CL1335RKD, CL1560RKA, CL1725RCB, CL1850BKD, CL1850RKD, TL3110BKD, TL3120RKD, TL3510RKA, TL3180RCB, TL3325BCB, TL3845RCB, TL3730BKD, TL3760RKD, TL3770RKA, FSDC-CL1725BCB, FSDC- TL3030BKD, FSDC-TL3060BKA 54 Trimax Locks: Models TGCL44 and TGL22 55 Battenfeld Technologies: Models 399390000 (11’ Version) and 411380000 (15’ Version) 56 Firearms Safety Devices Corporation: Model FSDC-CL1996RCB 57 Firearm Safety Devices Cooperation: Models TL3248BCB, TL3457RCB, TL3969RCB, RTL3248 58 Regal Industrial Sales Inc. (for AR style Rifles, Shotguns and ONLY): Models: R10SC1, R10SC3, R11SC3 59 DAC Technologies CL012014 60 Regal Industrial Sales Inc.: Model R15SC4 61 Firearms Safety Device Corporation: Models: FSDC-TL3005BKD, FSDC-TL3045BKA, FSDC-TL3050RKD, FSDC- TL3095RKA, FSDC-TL4167BCB, FSDC-TL4379RCB, FSDC-4853RCB 62 Royal Case Company, Inc.:Model: RC#37713 63. Regal Industrial Sales Inc.: Models M2018KD, M2018KA, RTL4167 64. Battenfeld Technologies: Model 110149 (15’ Version) 65. American Outdoor Brands Corporation: Models 1118824, 1118826

In addition to the approved list, pursuant to the provisions of M.G.L. c. 140 , the Colonel of the Department of State Police has determined that locks provided by the manufacturer of firearms, or large capacity weapons, both as defined in Section 121 of Chapter 140 , sold within the Commonwealth, that are designed to prevent the discharge of such weapon by unauthorized users shall be deemed as approved locks for the purpose of complying with the provisions of M.G.L. c.140, § 131K .

M.G.L. c. 140, § 131K states that all sales of firearms and large capacity weapons in Massachusetts MUST include a safety device approved by the colonel of state police. This requirement applies to any seller including a wholesaler. The seller is not required to install the device so long as the weapon is accompanied by it. Failure to comply with this provision will constitute a breach of warranty and an unfair trade practice. This section does not apply to non-large capacity rifles and shotguns. Sellers should ensure that the safety device is appropriate for the weapon being sold.

Responsible firearms owners must recognize the need and be aware of the methods of securing and childproofing their firearms, whether or not they have children. Not all gunlocks work on all guns and no lock is appropriate for all of the different types of firearms that exist. Owners must make sure that their locks are appropriate for the gun it is used with. Please make every effort to ensure that locks fit properly and make the gun mechanically inoperable, and test the fit and functionality of the lock. Trigger locks often come into direct contact with the trigger and should never be installed on loaded guns. In addition, it is strongly recommended that firearms owners store all guns unloaded , and store the ammunition separately.