This is a unique model 21, Gen 4. This has a very slighty used Glock 21 lower with a KM Tactical ported barrel and slide combo with a fiber optic sight. THe Optic is a brand new Riton 1Tactix enclosed emitter red dot (2MOA). The one magazine comes with a TaranTactical +4 base pad.  This setup shows very little wear and is priced to move.  The price does include shipping...