Amend2 Firearms G17MOD3BLK17: The Amend 18-round magazine is designed for use in the Gloc 17 and is a sturdy reliable 9x19MM magazine made of an advanced polymer material. It is a light durable and excellent alternative to the standard Gloc OEM magazine. This magazine has Amends unique baseplate to truly make it one of a kind. - Features: - 18-round magazine. - Sturdy impact resistant polymer for increased strength. - Heavy duty non-memory and non-corrosive spring. - Made in the U.S.A.