* * * MA Firearms Policy * * *

Per MGL, firearms & ammunition may only be sold to individuals with an active MA License to Carry (LTC) or FID Cards. If you do not have either of these licenses, we simply cannot sell you any firearms or ammunition. Please contact us for Basic Firearms Safety classes via email. 



FFL Transfers

We offer transfer services to & from other dealers and licensed gun owners. Contact us for further information as to how to proceed with a transfer.


Massachusetts LTC/FID Approved Training

Our basic firearm training course is approved by the MA State Police and qualifies LTC/FID Card applicants. Learn about Gun Safety & Massachusetts Firearm Laws


Glock Armorer Services & Repairs

We offer Certified Glock Armorer Services to keep your firearm functioning and in top shape.


MDS Machine & Tool Division: Class 3 Manufacturing & Gunsmithing

We offer custom Class 3 Manufacturing services to LE/Govt organizations who desire custom rifles for duty use. We offer an wide selection of M16, M4, and MP5 variants to suit your needs. Ask about our custom pistol platforms as well!

About Us



High-Quality Equipment

High-Quality Equipment

  • NRA & Mass State Police Certified Instructor (Home Firearm Safety & Pistol)
  • Glock Certified Armorer
  • NRA Personal Protection Inside The Home Graduate
  • Carbine I Graduate- TacDynamics
  • VCAT/Officer Down Training Graduate- TacDynamics
  • Lifelong Hunter & Shooter


High-Quality Equipment

High-Quality Equipment

High-Quality Equipment

We work with some of the world's leading manufacturers including:

  • Anderson Manufacturing
  • CBC Industries
  • CMMG
  • Dakota Tactical
  • Dark Storm Industries
  • Double Star Tactical
  • Glock
  • LMT-Lewis Machine & Tool
  • Liberty Supressors
  • Yankee Hill Machine

 VCAT Tactics & Officer Down Training Course


High-Quality Equipment


We have partnered with the outstanding team from

 Tactical Dynamics to offer an amazing array of advanced training courses.

Customers should contact us for our Promo Code to save 10% on these courses and enhance your skills!

Contact Us

Send us a message

Modern Defense Systems LLC

Randolph, MA 02368

(781) 214-1015


All Days By Appointment Only


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