I went with the 4.5" barrel from In Lead We Trust. I like how it comes with a 3-lug adapter machined into the barrel, but also includes a threaded muzzle so you can use your suppressor with either the 3-lug mount or the standard threaded fixed mount. And the Octane 45HD fits inside perfectly.What barrel length did you cut down to and why? I've seen 4.5" a number of times and wonder what the data is that serves this decision. I'm ready to get my Octane tucked up in the handguard and overall length down. Is there a ballistic sweet spot?
I think this is my plan as well after doing some research today. Thanks!I had mine cut to 4.5" and threaded 1/2x28. The choice of 4.5" was based on making sure that ammo that is rather subsonic in a 5" barrel stays that way.
I run a GA Revolution 9 in K config with it and it's a super fun gun.
I'm thinking of running a carbine class with it.
My post in the picture thread