OSA Custom Build – $100 Off End of Summer Special
Your firearm. Your vision. Built by OSA.
Take $100 OFF any OSA Custom Build during the OSA End of Summer Sale.
Whether you're starting with a firearm you already own or want OceanStateArmory to source the firearm for your project, we'll work with you to create a complete custom build tailored to the look, configuration, and purpose you have in mind.
This promotion applies to a wide variety of OSA Custom Builds, including:
- Custom Handguns
- OSA Lever Works Builds
- AR-15 Builds
- Other Long-Gun Builds
What Is an OSA Custom Build?
An OSA Custom Build goes beyond simply installing a single part or accessory. We work with you to develop a complete project using either a customer-supplied firearm or a firearm supplied by OSA, subject to availability and applicable laws.
Depending on the project, your custom build can include professional assembly and gunsmithing, custom Cerakote finishes, optics, weapon lights, upgraded furniture and controls, performance components, accessories, attachments, and other parts selected specifically for your build.
From a completely customized lever action through OSA Lever Works to a purpose-built handgun or AR-15, we'll help you put together the complete package.
How the Promotion Works
Purchase this OSA Custom Build Special during our End of Summer Sale to receive $100 OFF your qualifying custom build.
A $300 deposit reserves your custom-build spot and will be applied toward the final cost of your project.
After reserving your spot, we'll work with you to determine the firearm, parts, accessories, Cerakote options, and other details before providing the final build price.
End of Summer Sale: September 7–30, 2026, or until all available custom-build spots have been claimed.
Parts, firearms, optics, lights, accessories, Cerakote, engraving, and other materials are priced separately unless specifically included in your build quote. All builds and configurations are subject to parts availability and applicable federal, state, and local laws. Cannot be combined with other promotional discounts.
