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Applies More Pressure To Follower For Smooth Feeding From Extended Magazines

Extra-length magazine spring replaces factory-supplied spring for use with aftermarket magazine extenders and extended base pads that increase round capacity. Gives follower up to 10% more power for smooth, reliable feeding of rounds. Made of certified aerospace-spec chrome silicon wire, then heat-treated and stress-relieved to ISO 9000 standards.


Big Book Catalog, Issue:63, Page:490
Big Book Catalog, Issue:64, Page:209
Big Book Catalog, Issue:65, Page:209
Big Book Catalog, Issue:66, Page:216
Big Book Catalog, Issue:67, Page:221
Big Book Catalog, Issue:68, Page:232
Big Book Catalog, Issue:69, Page:221
Big Book Catalog, Issue:70, Page:223
Big Book Catalog, Issue:71, Page:230
Big Book Catalog, Issue:72, Page:230
Big Book Catalog, Issue:73, Page:212
Big Book Catalog, Issue:73, Page:232

SPECS: Chrome silicon steel wire. Fits S&W M&P pistols chambered in 9mm, .40 S&W, and .357 SIG.

BROWNELLS - S&W M&P EXTRA-POWER MAGAZINE SPRING