Polymer80 PF9SS 80% Single-Stack Frame and Jig Kit (Glock 43 Compatible)

Overview

There is a reason the polymer80 pf9ss 80% single-stack frame and jig kit (glock 43 compatible) has become a go-to for builders who want a slim, concealable platform without the full retail hassle. Polymer80 took the lessons learned from their compact frames and scaled them down into a single-stack design that fits the Glock 43 ecosystem. This kit gives you the frame block, the jig, the bits, and the instructions. You provide the finishing work, the trigger group, the slide, and the barrel. What you get is a firearm you built yourself, with a grip angle that feels natural in the hand and a profile that disappears under a t-shirt. If you have been looking for a project that results in a reliable daily carry piece, this kit is where you start.

Features and Specs

The polymer80 pf9ss 80% single-stack frame and jig kit (glock 43 compatible) comes with everything you need to complete the frame work. The frame itself is molded from a glass-reinforced polymer that holds up to holster wear and temperature swings. The jig is CNC-machined aluminum, not plastic, so it stays square through multiple builds. You also get the end mill, drill bits, and the pin kit. The frame accepts all Glock 43 lower parts, magazines, and holsters. Here is what you are working with:

• 80% frame block with integrated locking block rails and rear rail module. No separate rail inserts to align.
• Aluminum jig with hardened steel drill bushings. Consistent hole placement every time.
• Includes end mill, drill bits, pin kit, and step-by-step assembly manual.

When you finish the frame, you will have a serial-number-free component that requires standard Glock 43 internals to function. The grip texture is aggressive enough to lock into your hand but not so rough that it chews up your carry shirts.

• Compatible with all Generation 3-style Glock 43 slides, barrels, and lower parts kits.
• Standard 1913 Picatinny accessory rail for lights or lasers.
• Full-size trigger guard for gloved or ungloved use.

Who It Is For

This kit is for the builder who wants a dedicated single-stack pistol but does not want to pay the premium for a complete factory gun or wait for transfer paperwork. It is also for the person who enjoys the process of finishing a frame themselves and understands the responsibility that comes with it. If you have built a full-size Polymer80 frame before, the pf9ss will feel familiar but requires more patience because the material removal is tighter and the margins are smaller. If this is your first 80% build, take your time and follow the instructions exactly. The result is a firearm that fits your hand and your holster better than anything off the shelf, because you did the work.

• Experienced 80% builders looking for a single-stack option.
• Anyone who wants a Glock 43-compatible frame without a serial number.
• Shooters who prefer a more vertical grip angle and a shorter trigger reach.

Shipping and FFL

Because this is an 80% frame, it is not a firearm under federal law. It ships directly to your door with no FFL transfer required. No background check, no waiting period, no dealer fees. However, you must be at least 21 years old and legally allowed to possess firearms in your state, county, and city. Some states restrict or prohibit 80% frames, so it is your responsibility to know and follow your local laws. By purchasing this kit, you confirm that you are not prohibited from owning firearms and that you will complete the frame for personal use only. Check your state regulations before ordering. We do not ship to restricted areas.