Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Helps Prevent Unintentional Discharge

Holds your Glock frame securely and has two, machined slots that correspond with the cut you’ll have to make to install Cominolli’s Manual Thumb Safety Slot marked “SM” is for 9mm, .40 S&W, and .357 SIG; slot marked “LG” is for .45 ACP and 10mm. Includes a 3⁄32" End Mill that must be used in a high-speed rotary tool (listed elsewhere) to properly make the cut. Delrin® guide makes it easy to cut the correct angle. Replacement mills available separately.

“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.  Brownells is an independent dealer of parts and accessories for Glock® pistols, and is not 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 Glock parts or components.  As indicated in the product descriptions, not all parts and accessories on this site are official Glock products.


Big Book Catalog, Issue:66, Page:208
New Product Supplement, Issue:563, Page:007
Personal Protection, Issue:01, Page:018

SPECS: Safety Installation Jig - Aluminum, silver matte finish. 3½" (9cm) long, 5" (12.7cm) high, 3⁄8" (9.5mm) thick. Includes frame locating pins and delrin guide.