Hi I'm debating these 2 actions and I'm down to the last few details. How readily available are replacement parts such as extractors, ejectors, and other parts for each action. Does anyone have any opinions on a fixed style mechanical ejector in the Origin vs moving spring style in the APR G2? Also any pics showing how thick the bolt stop metal is on each. I found these two images showing the different style ejectectors. Any info will help a lot. Thanks.