The Flat River Arms AR15 lower parts kits contain all high quality, 100% American-made components, manufactured to our exacting standards. Each kit is guaranteed to fit your Mil-Spec dimensions lower receiver. We don't use foreign made parts, polymer parts or MIM parts.
Magazine Catch Kit Includes:
- Magazine Catch, Phosphate
- Release Button, 6061-T6 Aluminum, Hard Coat Black Anodized
- Magazine Catch Spring
- 100% American Made