Cut from 4140 pre-hard bar stock right here in our factory, our gas keys are guaranteed to fit properly and seal tightly to your milspec carrier. Nitride treated by H&M, theses gas keys are ready for your next build.AR15 / M16 / AR10 Gas Key - Nitride Finish
- Fits all standard AR15/M16/AR10 sized carriers
- Machined from 4140 pre-hard bar stock
- Nitride finish for durability and corrosion resistance
- Manufactured to mil-spec dimensions
- 100% USA Made
