The Fortis Billet Mag Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade aluminum. We added texture and engraved our logo for just the right touch of function and styling.Features: Available Color: Black, Gold, Red, Grey Same low profile as a mil-spec magazine button Low profile prevents from over-throwing the magazine catch Full aggressive front serrations while having full-length threaded internals Ultra lightweight Made in the USA