Sentinel Machine is a small federally licensed firearms manufacturer and dealer. Located just north of Colorado Springs, we offer a number of services to both firearms dealers and end users.
Notice for Colorado in 2025
Due to numerous changes in state-specific rules and regulations involving all federally licensed firearms dealers, Sentinel Machine will be updating transfer rates for both regular retail purchases and private party purchases. The Colorado Bureau of Investigation has increased the per-transfer fee nearly 50% over the last two years. Additional regulations that require each dealer to obtain and maintain a state-issued license in addition to the federally-issued license for the first time will incur additional overhead and fee costs.
Starting March 1st, 2025, Sentinel Machine will change the costs of a known/approved transfer to $35 and $45 for a single and multiple firearm transfer respectively. Unannounced/unknown transfers will all cost $100 for any number of firearms. All NFA transfers will cost $100 per item. These changes still represent a net LOSS compared to operating without the changes in state fees.
It is currently unknown if upcoming changes to state regulations will require an additional increase in cost to transfer a firearm from an online retailer or private party.
If you are a first-time firearms owner and seeking training in the use of a new firearm, please contact us to discuss possible reductions in transfer costs.
Manufacturing Services
We can help design and build custom configurations of several popular firearms including AR-15 and AR-10/LR-308 pattern rifles. Even if you only need one rifle built to a certain specification, we can offer a competitive rate. Rifles can be tailored to meet budget constraints. All manufacturing services are quoted individually. Please contact us to discuss manufacturing services.
Gunsmithing Services
We offer routine gunsmithing services. Many installation or customization jobs require one or two odd tools. In some situations, it can be cheaper to pay for those services rather than purchasing that torque wrench or pistol sight installation tool. It can also be helpful to have a professional perform the more complicated or safety-critical work. See the rate sheet for what we charge for common services.
Firearms Sales
Sentinel Machine offers limited sale of on-hand firearms. Some special orders can be accommodated with reasonable lead time. Contact us if you would like to see if we can find you a particular firearm.
Firearms and NFA Transfers
As a licensed manufacturer, Sentinel Machine can provide you with both incoming firearms transfers as well as person-to-person transfers. See the rates for the costs to transfer a firearm. Sentinel Machine is also a licensed dealer of NFA firearms (including suppressors) and can assist you with finding and transferring NFA items.
Sentinel Machine is a Powered By Silencer Shop dealer! By selecting Sentinel Machine as your dealer, you pay no transfer fees upon approval of your transfer.
Highlands Defense
If you are interested in pursuing high quality, safe, and practical firearms instruction, Highlands Defense provides an incredible training value. Sentinel Machine offers student discounts for many services.
Contact Information
The best way to contact us is by email. Send messages to info@sentinelmachine.com. Most requests or questions will be answered immediately during regular business hours.