Brownells Copper Anti-Seize, 8Oz
Brownells Copper Anti-Seize is a specialized lubricant formulated to prevent corrosion and seized fasteners on firearms and mechanical components. Whether you're assembling an AR platform, servicing rifle actions, or maintaining aluminum receivers, this 8oz bottle gives you a reliable compound that keeps critical parts from locking up due to oxidation or thermal stress. The graphite-free formula is safe on aluminum—a key advantage over older anti-seize products that can accelerate galvanic corrosion when applied to dissimilar metals.
Shooters and gunsmiths rely on anti-seize compounds to protect threads, barrel extensions, scope mounts, and action screws from the freeze that happens when steel and aluminum, or different steel alloys, sit exposed to weather and temperature swings. Brownells formulation is designed for the specific demands of firearm assembly and field maintenance, so you avoid the frustration of stuck components that refuse to come apart when you need to clean, adjust, or repair.
The 8oz size is practical for both home bench work and range kits—enough for numerous applications without excess waste. Keep a bottle in your cleaning kit or gunsmith station for barrel installations, muzzle device threading, scope ring assembly, and any time you're joining metals that might otherwise bind up over time.
Key Features
- Graphite-free formula safe on aluminum—eliminates risk of galvanic corrosion
- Prevents seized fasteners and frozen components
- Ideal for barrel extensions, action screws, scope mounts, and threaded connections
- 8oz bottle suitable for home gunsmithing and field maintenance
- Protects against corrosion caused by weather and temperature cycling
Specifications
| Brand | Brownells |
| Product Type | Copper Anti-Seize Lubricant |
| Size | 8 oz |
| Graphite Content | None (graphite-free) |
| Safe on Aluminum | Yes |
Frequently Asked Questions
Is Brownells Copper Anti-Seize safe to use on aluminum receivers and components?
Yes. The graphite-free formula is specifically designed to be safe on aluminum, avoiding the galvanic corrosion that can occur with graphite-based anti-seize products when applied between dissimilar metals.
What are common applications for anti-seize in firearm assembly?
Anti-seize is typically used on barrel extension threads, action screws, scope ring fasteners, muzzle device threads, and any metal-to-metal connection where thermal cycling or exposure to the elements could cause parts to freeze together over time.
How much coverage does an 8oz bottle provide?
An 8oz bottle supplies enough anti-seize for numerous firearm assembly and maintenance tasks, making it practical for home gunsmiths and shooters who service their own rifles and components regularly.

