This unit installs in the bottom rear cavity of the frame utilizing the lanyard hole for retention. Fits model M20, 21, 40 and 41. This product will only fit Generation 4 frames. Made of a high impact polymer, this insert is designed to keep out dust and debris as well as finish off the overall look of the frame. Allows for use with or without of the factory interchangeable backstraps.
Sig P320 9mm Full Size Grip Mod Assembly, Grey - 8900274
Original price was: $249.99.$228.99Current price is: $228.99. 
Sig P320 X-Series Grip Mod Assembly - 9/40/357 - Full/Large/Black - GRIP-MODX-F-943-LG-BLK
Original price was: $91.99.$81.99Current price is: $81.99.
Pearce Grip Grip Frame Insert for Glock Gen-4 20/21/40/41 Pistols – PG-FI21G4
Original price was: $3.99.$3.19Current price is: $3.19.
Compare Best Prices
-
![]()
Palmetto State Armory$3.99$3.19View -
Natchez$3.79View -
Brownells$3.99View -
The Real Grit$4.44View -
Academy Sports + Outdoor$4.99View -
Optics Planet$6.00$5.99View -
GritrSports$6.26View -
GunMag Warehouse$7.99View -
Shooting Surplus$9.93View -
TLO Outdoors$11.98View
Last updated: 2026-04-29 16:26:17
Additional information
| Brand | Pearce Grip |
|---|---|
| Merchant | Palmetto State Armory |
