Warne Smith & Wesson M&P 9/40 Magazine Extension, +5/9mm, +4/.40, Dark Earth, 3313-5RD

Warne machined these Magazine Extensions from 6061 T6 aluminum to add extra durability. The Warne Smith & Wesson M&P 9/40 Magazine Extension features an ergonomic shape and finger grooves that make it easier to insert and remove the magazine.