Hello I'm newer to firearms and I usually just shoot them and enjoy them how they came from the factory. I bought a mossberg 500 a few weeks ago that had a cracked action slide (yes the metal was cracked) and the gun came with no forend. I decided to buy a "tactical" forend for it online and I got a good deal on it. When I got the new forend in today I realized it was pinned and my magazine tube has the rings and spring on it. Is there a way to remove these rings or am I just better off returning the forend and buying one with an action slide. By the way the cracked action slide doesnt work at all I have thought about welding the crack up but that is only a last resort.