Description
The G21SF is one of the best pistols when it comes to handling, thanks to its shortened length of pull. Combine that with the intuitive engineering that comes with any Polymer80 products, you’re in for one hell of a build. This frame is crafted from a hardened polymer to ensure both a lightweight a durable structure. It features an extended beaver tail and textured grip for an improved control and handling.
Complete your G20 / G21 frame with custom parts, here!
PF45 80% Frame Features
- Includes Locking Block Rail System and Rear Rail Module
- Compatible with G20 and G21SF
- Caliber: 10mm and .45acp
- Integrated Trigger Guard
- Improved ergonomics and finish
- Reinforced, hardened polymer
- Factory-style grip texture
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.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Platform:
- GLOCK® Compatible
- Material:
- Polymer Composite
- Caliber:
- .45
- Caliber:
- 10mm
- Size:
- Full
- Model:
- G21SF

TRISTAR ARMS INC. RAPTOR II SEMI AUTO SHOTGUNS
GLOCK GLOCK G19 GEN5 A-CUT (COA PACKAGE) 9MM LUGER (9x19 PARA) SEMI AUTO HANDGUNS
HERITAGE MFG. BADLANDER 28GA SIDE BY SIDE SHOTGUNS
FRANCHI AFFINITY 3 SPORT TRAP SEMI AUTO SHOTGUNS
SMITH & WESSON MODEL 10 CLASSIC
SPRINGFIELD ARMORY SAINT VICTOR PISTOL 9MM LUGER (9x19 PARA) SEMI AUTO HANDGUNS
Taurus Raging Hunter, .44 Rem Mag, 6.75", 6rd, Black/Stainless
GLOCK G43X A-CUT 9MM LUGER (9x19 PARA) SEMI AUTO HANDGUNS
Taurus Raging Hunter, .357/.38, 6.75 Barrel", 7rd, Black
Taurus Raging Hunter, .357 Mag, 6.75" Barrel, 7rd, Black/Stainless
SIG SAUER P226 XFIVE RESERVE
PTR 91 SC 308WIN 16" FLTD 20RD BLK
Taurus Raging Hunter, .357/.38, 8.375" Barrel, 7rd, Black
LWRC IC 223 Remington/5.56NATO 16.1" Barrel 30+1 Black ICA5R5B16
CMMG DISSENT MK4 [TI]
SPG MP9226 M1A PRE 308 COMP CARBON BLK
RUGER RXM
Howa Hogue Kryptek AB Cerakote Package 300 Win Mag 24" Standard Barrel Austrian Brown Cerakote Finish Synthetic Stock Kryptek Highlander Camouflage Finish With Gameking 4-16x44mm Riflescope
RUGER PRECISION RIFLE Rifles Bolt Action
RUGER PRECISION RIFLE Rifles Bolt Action
Taurus Deputy 45 Colt, 4.75" Barrel, Black, Wood Grip, 6rd
IWI XG16 TAVOR X95 5.56 16.5 ODG 30RD
Taurus 24/7-45M12 MAG 45 12R
Howa Hogue Kryptek AB Cerakote Package .308 Winchester 22" Standard Barrel Austrian Brown Cerakote Finish Synthetic Stock Kryptek Highlander Camouflage Finish With Gameking 4-16x44mm Riflescope
IWI UPP9S UZI PRO 9MM 4.5IN
Sig P250 Full Size Used .45 ACP, 4.7" Barrel, Contrast Sights, Black Nitron, 10rd/14rd No Box
HENRY H001TLB LEVER FRONTIER OCT 24IN 22LR
Taurus 9mm G2c OEM Magazine, Black, 10rd
Sig P365 FreedomStars and Stripes Edition 9mm, 3" Barrel, Sig XRay3 Night Sights, 10rd Mag
Taurus 9mm GX4 OEM Magazine, Black, Extended Foor Plate, 11rd
Howa Hogue Gamking Scope Package, 7mm-08 Rem, 22", 5rd, Green Stock
Taurus 738 TCP Used .380 ACP, 2.84" Barrel, Black, 6rd