- Replaces worn or damaged parts
- returns a service rifle to factory specs
- use in building a precision custom rifle that meets your exact requirements.
- Complete, prepackaged kits include all the parts you need for specific subassemblies.
This is your basic Ejection port cover, spring, and pin for upper receiver Saves time and money—no need to hunt down each item individually. Includes cover, hinge pin, spring, and snap ring.. Every upper needs one,how bout this one.