Angry Bear iron sights are de-horned and snag free so they can be installed without issue on carry pistols. Manufactured of US sourced, billet-alloy steel and hard black nitride coated to be glare-free and rust resistant. Does not fit Glock MOS, Glock 42 or Glock 43 Fits: Large Frame Glocks, 10mm, 45 Auto Glock 20 Gen 4 , Glock 20SF , Glock 21 Gen 4 , Glock 21SF Includes: 1 x tall serrated blank front sight (0.175" tall) 1 x blank serrated rear sight (0.200" tall with 0.125" wide notch and shortened front ledge to fit slides cut for an optic) Front sight screw Rear set screw Install Video: DISCLAIMER: GLOCK is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated with, or endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of aftermarket GLOCK pistol components. For genuine GLOCK, Inc. products, visit www.glock.com.