Have you managed to take the delta ring apart at all
Not sure if they are all the same between brands. There is two notches cut out on the one half, and two "posts" shall we say on the other. You have pull back the ring, rotate the d-ring and the posts holding it in will come out the notches. There is the spring between the two halves, and the one that remains on the gun is threaded off.
Did that make any sense?
