Trying to find which threads are compatible with my Angel ARK...? I want to buy a RAP4 barrel and need to know which manufactures are compatible to allow installation...
The ARK is A1 threaded. Not a lot of barrel manufacturers make barrels in that threading. CP and Deadlywind make barrels compatible, straight from there websites.
Barrels labeled G7 Fly or 06 threads will work as well - there is just a longer shank after the threading so that some of the thread will be exposed when they are installed. 06/A1 threads are the only ones that will fit without an adapter though. Check the "What Barrel Does My Angel Take?" thread in the ultimate sticky to see examples of the various Angel-thread barrels.
Theres an upgraded 16" AR:K barrel kit for the ar:k thats apex acceptable with decent barrel backs. Id say go with that if you have the cash. I have one and I quite like it.