Colorado’s evolving firearm regulations mean that every private transfer needs to be backed by professional documentation. While the state requires background checks, this Colorado Gun Bill of Sale provides your essential private record for 2026. It documents the condition, price, and unique identifiers of the firearm, acting as your personal proof of transfer. In the Centennial State, having this signed document in your records is the only way to ensure your personal liability is fully addressed after the sale is complete.
How to fill out a Colorado Gun Bill of Sale
Colorado Firearm Transfer FAQ
Are background checks required for private sales in Colorado?
Yes. Since 2013, Colorado law requires that nearly all private firearm transfers be conducted through a licensed FFL dealer who will facilitate a CBI (Colorado Bureau of Investigation) background check.
Why do I need this Bill of Sale if I use an FFL?
The Bill of Sale is your private contract. It documents the agreed-upon price, the exact condition of the firearm, and serves as your permanent receipt that the transfer was initiated legally through a dealer.
What is the magazine capacity limit in Colorado?
Colorado law prohibits the sale or transfer of magazines that hold more than 15 rounds. Selling 'high-capacity' magazines privately is a crime.
Does Colorado have a waiting period?
Yes. As of 2023, Colorado has a mandatory 3-day waiting period between the initiation of the background check and the physical delivery of the firearm.
What if the buyer doesn't have a Driver's License?
A Colorado State ID is acceptable, but it must be valid and current. The FFL dealer will also require this ID to run the mandatory background check.
Can I sell to a family member without a background check?
Colorado law provides narrow exceptions for 'bona fide' gifts or loans between immediate family members (spouses, parents, children, siblings, grandparents, and grandchildren).
Who is prohibited from buying in Colorado?
Anyone with a felony conviction, certain violent misdemeanor convictions, or anyone subject to a protection order related to domestic violence.
Is there a state gun registry?
No. Colorado does not maintain a central registry of firearm owners. Your Bill of Sale is your private proof of transfer.