The Availability – Best Price is a complete lower parts kit for builders seeking reliable function at a competitive price point. It’s designed for the practical builder who prioritizes getting their project running without unnecessary extras. We started stocking this kit in summer 2025, and it has quickly become one of our steady sellers for a reason: it delivers consistent performance. Our staff notes that compared to previous versions we’ve handled, the machining tolerances are noticeably tighter, contributing to a smoother assembly process.
Stand-Out Features
- Complete Kit: Contains all necessary springs, pins, and small parts to assemble a polymer or compatible lower receiver.
- Improved Tolerances: Our team has observed tighter machining on key components compared to earlier iterations, aiding in fit and function.
- No-Frills Reliability: Focuses on core functionality with proven, standard design parts for dependable operation.
- Ready for Assembly: All parts are included and ready for installation, saving time on sourcing individual components.
Technical Data
| Product Type | Lower Parts Kit (LPK) |
| Compatibility | Designed for Polymer80 and compatible frames |
| Condition | New, Factory Packaging |
| Contents | All springs, pins, trigger, hammer, disconnector, selector, mag catch |
| Weight (measured) | 0.8 oz |
| Finish | Standard phosphate / mil-spec type |
| Packaging | Individual bagged components |
Your Questions Answered
Does this include a trigger?
Yes. This is a complete lower parts kit. It includes a standard single-stage trigger assembly (trigger, hammer, disconnector), along with all necessary springs, pins, safety selector, and magazine release.
Is this compatible with my P80 frame?
This kit is designed for Polymer80 PF940 series frames (like the PF940C, PF940V2, PF940SC). It is also generally compatible with other frames that use standard AR-style lower parts. Always confirm compatibility with your specific receiver before purchase.
What tools are needed for installation?
You will need basic gunsmithing tools: roll pin punches and a hammer, preferably a set of starter punches, and a small armorer’s block is helpful. Some pins may require firm pressure due to the tighter tolerances noted by our staff.
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✅ Not happy? Return within 30 days.
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✅ Domestic shipping — no customs
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