Brownells 75th Anniversary - A Shooting Heritage

Add Additional Roundds Without Special Tools

High-strength, aircraft aluminum base pad slides open to accept magazine body and locks into place. Removes in seconds for easy cleaning. Base pad increases capacity of 15 round, .40S&W magazines by three rounds and 9mm magazines by 4 rounds. Maintains 140mm USPSA rule and increases magazine to maximum levels for competition. Comes with extra-power, steel spring and installation instructions.

“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:72, Page:229

SPECS: Aluminum, black. Steel mag spring. Fits small frame Glock® 9mm & .40 S&W pistols.


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In Stock

Style: Magazine Springs