Update: On March 19, 2023 Polymer80 was granted a preliminary injunction and a restraining order against the ATF. Because GBD is an entity that buys directly from Polymer80, we are able to resume selling Polymer80's products to our customers.
Thanks to some unlikely press lately, no doubt by now you've heard of Polymer80. They've been the industry standard for 80% pistol frames for quite a while. We give you Polymer80's PF45™ 80% pistol frame. This larger-sized frame is compatible with Glock® components for Gen 3 3-pin: 10mm and .45 acp (G20 and G21).
This frame features an extended beavertail and thumb ledge for better control. A double-undercut trigger guard enhances comfort, allowing for a firmer grip. Lastly, engineers upgraded the 22-degree grip angle to 18 degrees. This new angle provides better recoil control and quicker follow-up! Even with a new grip angle, the PF45™ is still compatible with OEM and aftermarket Glock® magazines.
Grab a G21 lower parts kit here!
PF940V2 80% Frame Features
- Compatible with components for 3-pin (Gen 3) G20 and G21.
- Improved ergonomics and finish
- Reinforced, hardened polymer
- Factory-style grip texture
Completing Your Frame
In addition to the jig, fabricating your frame requires some basic tools. This kit does not include the other parts required to assemble your pistol once fabrication is complete.
- PF45™ 80% Full Size Frame
- 80% jig
- Bits and instructions
- Blank serialization plate
- Stainless Steel Locking Block Rail
- Stainless Steel Rear Rail Module
- Hardened Pins for LBRS and RRM
NOTE: An end mill bit was deemed unnecessary by Polymer80 and is not included with this kit.
Not a Firearm (State Laws Vary)
Some states have banned receiver blanks and other gun parts. Please check our Shipping Restrictions before placing an order. We cannot fulfill orders in restricted states for any reason.
DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 80 Percent Lowers, a/k/a 80-lower.com nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
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 or "assault weapons" (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 or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.