Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Modern Design & Materials For Consistency, Reliability & Superior Performance

Manufactured exclusively with aerospace-quality, chrome silicon for superior durability and performance. After winding, each spring is heat-treated, shot peened and stress relieved for long-lasting, reliability. 20-round springs are designed for use with standard magazine followers. 30- and 40-round springs should be used with green, mil-spec followers.

AR-15, Issue:09, Page:056
Big Book Catalog, Issue:67, Page:059
Law Enforcement / Police Store, Issue:02, Page:001
New Product Supplement, Issue:566, Page:015
SPECS: Chrome silicon steel wire.