This is a semi automatic complete trigger with housing and safety that came out of my  MAC mp5 style MAC5 Full size 9mm pistol. I replaced it with one of the Franklin ones. That being said I honestly think the trigger pull on the one I took out was better on the first position. Probably one of the best stock mp5 triggers I've shot. 
I'm in Castle Rock but work in Aurora. 
Id be interested in a high quality AR15 BCG or possibly a mid grade BCG and upgraded charging handle like a PRI Gas buster etc in trade. Also maybe a knights rear sight for a clone build. .300aac ammo too
You and text me at REDACTED or message me on Armslist.