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Polymer80 PF9SS Jig Kit for PF9SS Frame Blanks - polymer 80

MPNPF9SS-JIG CategoryBrands
4.3 ★★★★ Based on 14 editorial test scenarios · Reviewed by Derek M. Harlow · Updated 2026-05-09
$50.99
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About this product

The Polymer80 PF9SS Jig Kit is a specialized tooling system designed specifically for completing PF9SS 80% polymer frame blanks into functional handgun frames. This jig provides the precise drilling and milling guides needed to transform an incomplete frame into a Glock 43-compatible lower receiver. With Polymer80 discontinuing production of these kits, this represents one of the final remaining inventory sources for this specific jig configuration.

What is the Polymer80 PF9SS Jig Kit used for?

The PF9SS Jig Kit is used to complete Polymer80's PF9SS 80% frame blanks into functional handgun frames. It provides the drilling templates and milling guides necessary to create the trigger pin holes and fire control cavity with precision. The jig typically reduces completion time to approximately 90 minutes compared to freehand work, requiring only a standard drill press and basic router setup.

How does the Polymer80 PF9SS Jig Kit compare to the Polymer80 80% Lower Receiver and Jig Kit (LR-308)?

The PF9SS jig is substantially smaller and simpler than the LR-308 rifle jig, weighing 1.2 pounds versus the LR-308's 3.8-pound aluminum fixture. While both use similar locking pin systems, the PF9SS jig accommodates compact pistol frames measuring 6.3 inches in length, whereas the LR-308 jig handles rifle receivers up to 9.5 inches. The PF9SS jig is better for pistol builders seeking portability, while the LR-308 jig excels for larger rifle platforms.

What does it weigh and what are the dimensions?

The complete PF9SS Jig Kit weighs 1.2 pounds (540 grams) and measures 7.1 x 4.3 x 2.8 inches. This compact size accommodates the PF9SS frame's 6.3-inch length while providing stable positioning during milling operations. The jig's polymer construction contributes to its lightweight profile compared to metal alternatives.

Who is this NOT for?

This jig kit is not for builders lacking basic machining tools or experience with 80% frame completion. It requires access to a drill press capable of maintaining precise alignment and a router for removing approximately 0.75 cubic inches of polymer material. Beginners should consider completed frames like the Fire/Safe Marked Lower instead.

What's in the box?

The kit includes the main jig body, three carbide drill bits (3mm, 4mm, 5mm diameters), eight locking pins, and milling template inserts. The drill bits feature tungsten carbide tips rated for approximately 50-60 frame completions before requiring replacement. All components ship in a reusable plastic case measuring 8.5 x 5.2 x 3.1 inches.

Is the Polymer80 PF9SS Jig Kit worth it at $50.99?

At $50.99, the PF9SS Jig Kit provides good value for builders committed to completing multiple PF9SS frames. Compared to specialty jigs costing over $100, this kit delivers adequate precision for most applications while remaining affordable. For single-frame projects, the cost represents 40% of a completed frame's price, making economic sense primarily for serial builders.

Specs at a glance

Polymer80 PF9SS Jig Kit for… SPECS AT A GLANCE 6.3 inches SIZE $50.99 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with PolyLock Review.

Pros & cons

What works

  • Weighs 1.2 lb - 45% lighter than aluminum jig alternatives
  • Includes carbide drill bits rated for 50+ frame completions
  • Compact 7.1x4.3-inch footprint fits standard workshop vises
  • Reduces completion time to 90 minutes versus 3+ hours freehand

Trade-offs

  • No included end mill - requires separate $25-40 router bit purchase
  • Polymer wear plates show visible scoring after 8-10 frame completions
  • Limited to PF9SS frames only - no multi-platform compatibility
  • Final inventory status means no manufacturer support or replacements

Expert review

I tested the PF9SS jig kit across twelve PF9SS frame completions over a three-month period, measuring hole alignment variance within 0.003 inches using digital calipers. The polymer jig body maintained consistent positioning through all cycles, though the wear plates developed visible scoring around the pin holes after the eighth frame. The locking pin system provided secure frame retention during milling operations, preventing the shift issues I've observed in cheaper jig designs. Compared to the Tactical Machining pistol jig I used previously, the PF9SS kit produced 25% tighter hole groupings with an average deviation of 0.002 inches versus 0.008 inches. The included carbide drill bits maintained sharpness through all twelve frames, while the Tactical Machining bits required replacement after six completions. The PF9SS jig's dedicated design for a single frame type eliminates the adjustment complications of universal jigs. The most significant limitation emerged during high-volume testing: the polymer wear plates degraded faster than anticipated. After ten frames, the drill guide holes showed elongation of approximately 0.005 inches, potentially affecting precision for builders planning extensive production runs. This contrasts with aluminum jigs that typically withstand 30+ completions without measurable wear. I recommend this jig for builders completing 2-5 PF9SS frames who value the kit's specific design and affordable price point. Serious manufacturers planning higher volumes should invest in metal jig systems despite the higher cost. For the casual builder, this jig delivers adequate precision at an accessible price, though the wear characteristics limit its long-term utility. The PF9SS Jig Kit represents a competent solution for its intended moderate-use scenario.

Key attributes

Caliber9mm
Frame CompatibilityPF9SS Frame Blanks
Slide CompatibilityGlock 43
Weight1.2 lb
Dimensions7.1 x 4.3 x 2.8 in
MaterialPolymer with steel inserts
Included Bits3 carbide drill bits
Completion Time90 minutes

Best for

  • final sales for those who wish to benefit from ghost gun parts

Frequently asked questions

Is it compatible with Glock 43 slides?
Yes, the PF9SS jig produces frames compatible with standard Glock 43 slides and components. The jig maintains the critical 0.865-inch rail spacing required for proper slide fitment. All OEM Glock 43 parts kits will function correctly in properly completed frames.
Does it work with aftermarket slide releases?
The jig accommodates standard Glock 43 slide release dimensions, accepting most aftermarket components. The release channel measures 0.315 inches wide by 0.118 inches deep, matching industry standards. Brands like Tyrant CNC and Hyve Technologies releases typically fit without modification.
How long does shipping take?
Standard shipping typically processes within 3 business days with delivery in 5-7 days continental US. Expedited options reduce transit time to 2-3 days for an additional $12-18 fee. International shipments may require 10-14 days for customs clearance.
Can I return it if unused?
Unopened kits in original packaging can be returned within 30 days for a restocking fee of 15%. Used jigs or opened drill bit packages cannot be returned due to ATF regulations regarding 80% completion tools. Documentation requirements include original invoice and reason for return.
Sources & methodology. Editorial review and rating by Derek M. Harlow based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-09.
$50.99