Pistol Build Kit with Polymer80 PF940C 80% Compact Pistol & Jig w/ Free Portable Handgun Lock Box



Everybody knows the Glock® handgun. It’s one of the most versatile pistols out there, with one of the biggest aftermarkets and most options for customization. But buying one at the gun store usually means paying a premium, and paying for extra parts you don't want. We’ve partnered with Polymer80 to bring you one of the first complete 80% pistol build kits out there. Now you can build your own custom handgun at home, from scratch! Your finished pistol will be compatible with gen 3 Glock® components. Check out what you get:

PF940C 80% Frame and Jig Kit

The PF940C 80% frame and jig kit includes a ready-to-machine frame blank, which is 100% compatible with OEM Glock® parts.  You also get the necessary jig with drill bits and an end mill bit to complete your frame quickly and easily with hand tools. The included frame boasts plenty of upgrades and new features:

  • Upgraded ergonomic features
  • Reinforced high-strength polymer
  • Picatinny accessory attachment rail
  • Stainless steel locking block rail system
  • Stainless steel drop-in rear rail module
  • Serialization plate – required for California builds

Front- & Rear-Cut Slide

We included  a front- and rear-cut slide with a nitride finish for its close adherence to factory Glock® specs, as well as its overall build quality and features. Front serrations that fully wrap around the slide allow for press checks and quick slide manipulation, and a 17-4 stainless steel billet construction ensures reliability and compatibility with any Gen3 Glock® parts.

  • Heat treated to 41-44 on the Rockwell C scale
  • Finished with a matte black nitride finish
  • Factory internal dimensions
  • Factory Glock® sight cuts
  • For Gen3 pistols


This US-made barrel is made from the highest-quality 416R stainless available, ensuring peak accuracy and consistent performance with any load.

  • Features 1:10 twist rate
  • Button rifled for guaranteed accuracy
  • Machined with 11-degree target crown
  • Finished with nitride treatment for corrosion resistance

Additional  Accessories

We’ve included everything else you need to hit the range as soon as you machine your frame and assemble your pistol:

  • Factory-spec upper parts parts kit
  • Factory-spec lower parts kit
  • Factory-spec gen 3 guide rod/recoil spring assembly
  • Front and rear OEM-style sights

FREE Portable Handgun Lock Box

With your build kit, you also get a free handy lockbox to lock up your handgun. It’s a perfect fit for your pistol and a magazine, and it’s small enough to stash away for safekeeping. It’s included in your build kit at no extra cost! Check it out:

  •         Set your own combination
  •         Small enough to be concealed at home or in your car
  •         Durable steel construction and scratch-resistant
  •         Includes a coated steel anchor cable to attach to immovable objects
  •         Foam interior protects your pistol
No FFL required  Made in the USA  Lifetime Warranty

Shipping Restrictions

AR-15Lowerreceivers.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally. Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website. We try our best to keep our shipping page current, but laws change daily.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, New Jersey, New York, Pennsylvania, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.