Recover Tactical Stabilizer Synthetic Kit For Glock Large Frame Black 0. (greyed out parts in the image are not included). See the fit chart below. The only differences between options are what comes bundled & the option for brace vs stock. Specifications for Recover Tactical Stabilizer Synthetic Kit For Glock: Manufacturer: Recover Tactical Chassis Material: Synthetic Gun Make: Glock Gun Model: Glock 21 Glock 20 Features of Recover Tactical Stabilizer Synthetic Kit For Glock Ready for use out of the box. Simple installation Uses the Guns built in sights: no need to calibrate sights Compatible with compensators & Red Dot optics No pistol disassembly or permanent modifications required Ergonomic no modifications required UCH Charging Handle (or charging can be done using a red dot optic) Lightweight and compact Made from glass-reinforced polymer Modular with optional Picatinny rail adapters Increases accuracy Fully functional with folded armbrace Compatible with the G7 proprietary holster Package Contents: Recover Tactical Stabilizer Synthetic Kit For Glock What firearm models does the manufacturer say Recover Tactical Stabilizer Synthetic Kit For Glock is compatible with? The manufacturer says that Recover Tactical Stabilizer Synthetic Kit For Glock is compatible with Glock 20 Glock 21Recover Tactical 2021B-01: Stabilizer Synthetic Kit For Glock Large Frame Black