The Polymer80 PF45 80% large frame is a solid starting point for a .45 ACP pistol build. This frame, in Flat Dark Earth, offers improved ergonomics over earlier designs and is built with a reinforced polymer that holds up to use. It’s a popular choice for folks looking to build a reliable handgun for concealed carry, home defense, or even a larger-framed hunting pistol.
Features:
- Compatible with Glock® 20SF/21SF slide assemblies and magazines.
- Aggressive grip texture – good as-is, and you can customize it.
- Includes a Picatinny/STANAG rail for lights and accessories.
- Comes with the finishing jig and drill bits needed to complete the frame.
- Stainless Steel Locking Block Rail System (LBRS™)
- Stainless Steel Rear Rail Module (RRM™)
- Includes hardened pins for LBRS™ and RRM™
- Blank serialization plate included.
Important Note: If you’re using Lone Wolf Dist. completion parts, ensure they are Generation 3 compatible. Using anything else can damage the frame and will void Polymer80’s warranty. Double check all components before you start assembly.
Colors Available: Black, Flat Dark Earth, Olive Drab Green, Gray, Cobalt
Shipping & FFL: We ship all firearms and 80% frames to Montana addresses. 80% frames require an FFL transfer. We’ll handle the paperwork with your local FFL dealer to ensure a smooth, legal transaction. Shipping costs are calculated at checkout.
Please verify that owning and building a firearm from an 80% receiver is legal in your specific Montana county. Laws are subject to change, and it is your responsibility to remain compliant.




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