WE OFFER SUPER FAST & FREE 50 STATE SHIPPING & HAVE EXCELLENT FEEDBACK !!!Thanks for visiting ROCK MOUNTAIN TACTICAL ! We are Authorized Full Line dealers for several high quality brands like: Magpul, Ajax Grips, Viking Tactics, ODIN Works, GG&G, Eberlestock, Emerson Knives, Savvy Sniper Slings, Wilson Combat & many other excellent name brands. We have 1000s of items in stock: all types of parts and other gear. Please Visit our eBay Store at Rock Mountain Tactical – since 2006. On Time. On Target. NEVER QUIT !!!Listing is for (1) ZEV Technologies Glock Upper Parts Kit, 9mm – # PK-UPPER-9.- This 9mm parts kit works with a ZEV slide to create a completely functional upper assembly including all internals, an extra firing pin spring and ZEV backplate.Kit Includes:Factory components;Channel liner, Striker sleeve, Spring cups, Extractor, Rod & bearing assembly ZEV components;Stainless steel Firing Pin safety & Firing Pin, FPS Spring, & (2lb & 3lb) Striker spring, and ZEV Backplate.