No, we didn't see that.
What we saw was DM asking as an afterthought if the gun was clean. He'd already negotiated and made arrangements for price and pickup time.
Feb 9 ?? Millard and Isho negotiate (via text) price of gun. Day 37: Falconer testimony
Feb 9 ?? Isho texts Millard: "I can get him to bring me it now would u like it foreal?" Day 37: Falconer testimony
Feb 9 ?? Millard texts Isho: "let's do it. Pick it up tonight?" Day 37: Falconer testimony
Feb 9 ?? Isho texts Millard: "22 cash plz I'm doing ya a big favour trust. I'm not making a penny." Day 37: Falconer testimony
Feb 9 ?? Isho texts Millard: "My guys comn from Niagara so plz be on time." Day 37: Falconer testimony
Feb 9 ?? Isho texts Millard: "if u need lessons tomorrow I'm free and we can go over every piece ok?" Day 37: Falconer testimony
Feb 10 ?? Millard texts Isho: "btw is it clean or dirty?" Day 37: Falconer testimony
Feb 10 ?? Isho texts Millard: "clean." Day 37: Falconer testimon
https://docs.google.com/spreadsheets/d/1Hb6kEtpLa8cHCVorBuy4yqfHymGvhfHeM6s8QMWGVW8/pubhtml
Maybe Isho does deal with dirty guns, but we certainly don't know that from the evidence.