Our Story
Local. Licensed. Personal.
Custom Defense Solutions USA was founded in 2018 to bring personal, no-pressure firearms service to Littleton, Massachusetts and the surrounding communities. As a federally-licensed FFL dealer and manufacturer of firearms, we pride ourselves on competitive pricing, fast transfers, and treating every customer — from first-time buyer to seasoned enthusiast — with the same level of care and respect.
Whether you walk in on a Saturday or schedule a weekday appointment, you’ll get one-on-one time with someone who knows the inventory, knows the law, and knows what it takes to put the right tool in your hands.
What Customers Say
Trusted by the Community
“Going to a gun store can be intimidating when you’re new, especially in kind of a weird place like the mill. At CDS, every single person is friendly, welcoming, and helpful. There was a minor mistake for one of my purchases, and Jason gave me a box of 9mm on the house to make up for it. He absolutely did not have to do that, but it showed that CDS is committed to their customers. I will definitely be back.”
Tyler K · Google Review
“I’ve been buying firearms and all things related. This is by far the best I’ve ever shopped at. The service is on point, they are knowledgeable, patient, professional, and most of all they don’t hover. The variety and the willingness to order a product if it isn’t in stock is above and beyond an excellence in service. This is my new forever home!”
David T · Google Review
“Hands down the best shop I have been to since moving to Mass! Jason and Jay are awesome! I went in with some what of an idea of what I wanted, Jay went above and beyond to show me all the options they had in that style and thoroughly explain them to me. I have never left a shop feeling more satisfied and confident in the decision I made. Hands down my new go to place. HIGHLY RECOMMEND!”
Waine K · Google Review
Ready to Get Started?
Visit Us or Get In Touch
Walk-ins welcome Sat–Sun. Weekday appointments available — just call or email ahead.