The Availability is a complete lower parts kit for builders seeking a reliable, drop-in solution. It’s designed for those who want a functional lower assembly without sourcing individual components. We added this kit to our catalog in Q4 2025 and have found the supplier to be consistently reliable with positive customer feedback. The finish quality on the batch we received was excellent, with no visible tooling marks.
Stand-Out Features
- Complete kit includes all necessary springs, pins, and fire control components.
- Components are manufactured to standard specifications for reliable drop-in fitment.
- All parts are new production and sourced from a vetted domestic supplier.
- Kit is designed for straightforward assembly with basic gunsmithing tools.
- Provides a solid foundation for a functional, compliant build.
Technical Data
| Kit Type | Complete Lower Parts Kit |
| Compatibility | Standard Polymer80 frames |
| Trigger Type | Standard Curved |
| Finish | Phosphate / Black Oxide |
| Weight (measured) | 6.6 oz |
| Includes | Trigger, hammer, disconnector, springs, pins, magazine catch, slide stop |
| Condition | New |
Your Questions Answered
Does this kit include a trigger?
Yes. This is a complete lower parts kit. It includes a standard curved trigger, hammer, disconnector, and all associated springs, pins, and controls needed to assemble a functional lower.
Is this compatible with my frame?
This kit is designed for standard Polymer80 frames. It uses common specifications for fitment. If you are building on a standard P80 frame, this kit should provide proper drop-in function.
What tools are required for installation?
Basic gunsmithing tools are needed: roll pin punches, a small hammer, and a set of pliers. A vise and frame block are helpful but not strictly required. The installation follows standard procedures.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
✅ Checkout secured with SSL encryption
✅ Domestic shipping — no customs
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