As title states, I have a Pyramid Trigger system for a Gen 4 GLOCK 21/21SF/30/30S/30SF/41. It is new in box, never taken out. Asking 150.00. Can meet in the Beaverton area. Will trade for the following magazines AR Glock 19/17/20/23/22/43 Sig 226/229 9MM Sig 220-10 FN 5.7 AR parts, camping stuff, you name it. Surprise me.