Polymer80 PF940v2 Jig Kit for PF940v2 Frame Blanks
About this product
The Polymer80 PF940v2 Jig Kit is a precision machining fixture designed specifically for completing PF940v2 frame blanks into functional firearm receivers. This jig provides the necessary guidance for drilling and milling operations required to transform an 80% frame into a finished component. It represents the essential tooling bridge between raw frame blank and functional build.
What is the Polymer80 PF940v2 Jig Kit used for?
This jig kit guides the precise drilling and milling operations required to complete Polymer80 PF940v2 frame blanks into functional firearm receivers. It ensures proper alignment for trigger pin holes, rail milling, and slide release channel cutting with ±0.003-inch positional accuracy. The jig maintains dimensional stability throughout the machining process, preventing tolerance stacking that could affect final function.
How does the Polymer80 PF940v2 Jig Kit compare to the 80% AR-15 Easy Jig® Gen 1?
The PF940v2 Jig Kit provides superior polymer-specific tooling compared to the aluminum-focused 80% AR-15 Easy Jig® Gen 1. While the Easy Jig® excels at aluminum lower machining with its quick-change bushing system, this jig features polymer-optimized clamping pressure distribution that prevents frame deformation during milling operations. The PF940v2-specific design eliminates the need for adapter plates required when using universal jigs on pistol frames.
What does it weigh and what are the dimensions?
The complete jig assembly weighs 2.1 pounds (953 grams) and measures 8.5 inches long by 4.25 inches wide by 3.1 inches tall. The aluminum jig body contributes 1.8 pounds of this weight, while the stainless steel guide pins and hardware add the remaining 0.3 pounds. These dimensions provide stable work surface area while maintaining compatibility with standard bench vises and milling machine tables.
Who is this NOT for?
This jig kit is not suitable for builders who lack access to a drill press or milling machine capable of maintaining 0.001-inch runout tolerance. It requires approximately 45-60 minutes of focused machining time and intermediate mechanical aptitude for proper operation. Beginners should first review our rail depth measurement protocol before attempting frame completion.
What's in the box?
The kit contains one aluminum jig body, three carbide-tipped drill bits (3mm, 4mm, 5mm diameters), two stainless steel guide pins, six clamping screws, and one alignment template sticker. The drill bits feature 135-degree split points that reduce walking in polymer material, while the guide pins maintain ±0.002-inch positional repeatability across multiple uses. All components arrive packaged in foam-cut storage for protection during shipping.
Is the Polymer80 PF940v2 Jig Kit worth it at $89.99?
At $89.99, this jig kit delivers measurable value for builders completing more than two PF940v2 frames, saving $25-40 per frame compared to professional machining services. The aluminum construction ensures it will maintain dimensional stability through approximately 50 frame completions before showing measurable wear on guide surfaces. For builders working with multiple platforms, our .308 billet lower requires different tooling but follows similar precision principles.