Polymer80 PF940SC: The New 80% SubCompact Glock Frame

Polymer80 PF940SC frame

It appears Polymer80 is set to release a new 80% Glock compatible pistol frame at the 2018 SHOT Show. Called the PF940SC, the new unfinished frame is designed to be compatible with the sub-compact sized Glock pistols like the G26 and G27.

Polymer80 offers a number of 80% receivers that allow you to complete various machining and assembly operations to turn them into working firearms. This allows the hobbyist shooter to literally build their own gun.

Before now, the company offered only two sizes of Glock compatible 80% frames – one for full sized guns and another for the compact (Glock 19 style) frame. The new PF940SC would allow shooters to build a complete set of Glock compatible pistols.

The 80% frames are not copies of the Glock frame. Rather, they are new designs that are compatible with standard Glock parts. As a builder, you can simply order OEM parts kits and build your own pistol with this frame once you complete the needed machining on the frame.

Building a Polymer80 Glock
With the original Polymer80 Glock compatible frame, you had to mill the slide rails. The PF940SC does not require milling the rails.

The new frame uses reinforced polymer for a combination of strength and modest weight. A jig is included along with the tooling needed to machine the frame. Polymer80 opted to use a Picatinny-type accessory rail to allow the use of a light or laser when completed.

A stainless steel locking block with front rails and a drop-in rear stainless steel rail module are used. This is similar to the design used on the existing compact frames, and a significant improvement over the original full size frames. The original full size frame uses polymer rear rails that have to be milled, filed and hand fitted. It works, but it does take a lot of time to perfect.

Shooting an 80% Glock pistol
I built a Glock compatible pistol (full size) with a Polymer80 frame. I look forward to trying out the new PF940SC also.

Polymer80 anticipates a retail price of $149.99 when they come to market. This is in line with the company’s other Glock compatible frames.

If you’ve never built your own firearm using an 80% lower or frame, you might be surprised at how easy it is. It requires time and tools, but can be done as a Saturday project. Many guns – from AR-style rifles to 1911 compatible pistols – are made by hobbyists, and are completely legal under federal law. Check out my article on the legalities of home made guns without serial numbers for more information. If you are ready to jump in and build your own, you can click here and buy one of the Polymer80 frames from Brownells. It will be shipped right to your door without any need for the ridiculous fees associated with gun transfers.

Disclosure is a for-profit website. I do not charge readers a dime to access the information I provide.

Some of the links on this page and site are affiliate links to companies like Amazon and Palmetto State Armory. These links take you to the products mentioned in the article. Should you decide to purchase something from one of those companies, I make a small commission.

The links do not change your purchase price. I do not get to see what any individual purchases.

By Richard Johnson

Richard Johnson is a gun writer, amateur historian and - most importantly - a dad. He's done a lot of silly things in his life, but quitting police work to follow his passion of writing about guns was one of the smartest things he ever did. He founded this site and continues to manage its operation.

15 replies on “Polymer80 PF940SC: The New 80% SubCompact Glock Frame”

I have been eying these in the local gun shop. Since I sold my G26 to my son in law…I may have to replace it with one based on a Polymer80. Then again, I don’t have a G17 either…
God bless

If you build the Polymer 80 version of the Glock 17, make sure you get the second version and NOT VERSION 1.0 or 1.5. Those were plagued with problems. The PF940V2 is frikkin flawless and beautiful. Ive done a few of the G19’s and G17’s from P80, and I will tell you their frames are better then real Glock frames.

I love my p80 full size and can’t wait to finish the compact g19 I did for my wife. All I need to is the upper. I have been hoping they would do a sub compact ever since I shot 1 at my local range. These P80 pistol r glocks much cooler baby brother. Lol. I shot glocks to compare the 2 and there good guns. Yet these I like more. U get a great satisfaction when u do yourself in ur garage. I will build these in all cals. It’s an awesome addiction. Lol

Careful with your wording. You can NOT technically do one for your wife. She has to do the work. You manufactured one for her and it is technically illegal. Catch 22.

You can certainly sell a gun you manufactured (as far as I know, I think you need to add a serial number), you can’t sell them as a business, for that you’d need a manufacturer’s license.

Why would he be unable to gift a gun he made if he complies with whatever handgun transfer laws in his state? Many (most?) have simplified “transfers” between husband and wife.

I think we are in agreement.

Other readers might want to REALLY be sure they understand the difference between what I typed “You can certainly sell a gun you manufactured” and what you typed “manufacturing a firearm as a gift is not permissible”.

At a glance that looks like the difference between a normal life and existing as a lifelong felon.

There is definitely a lot of tiny, but important, distinctions in the laws, and you are correct – not much separates “legal” from “felon”. It sounds like we are on the same page. Thanks for reading!


Comments are closed.