I'm surprised it closed. The type 2 looks line a type 1 that's haff the back end cut off. The back end will fit into the carrier but its significantly longer.
I would not fire it like that.
ETA. You're saying you pulled the whole tail and just reinstalled the carrier with the type 1 bolt in the carrier?
I'm not familiar enough edith the measurements to know if that setup will function it seems like a type 1 without the tail on the bottom of the carrier.
I'd still say no.
As an aside , I asked Robinson about running the grendel a type 1 bolt. They said no. No details given. I don't think they'd cover you if you tried this and kit didn't go well.