BBossman1 said:That "o-ring" is part of the gas system that is retained in the barrel by the spanner nut you see on the barrel lug, it shouldn't come out. I guess it could become dislodged if you scrub too aggressively. I have heard of people removing the spanner nut, spring and piston, but it isn't easy to get back together. You may want to contact Mossberg...
mr821907 said:BBossman1 said:That "o-ring" is part of the gas system that is retained in the barrel by the spanner nut you see on the barrel lug, it shouldn't come out. I guess it could become dislodged if you scrub too aggressively. I have heard of people removing the spanner nut, spring and piston, but it isn't easy to get back together. You may want to contact Mossberg...
Strange, I didn't even touch the spanner nut. This thread like ring was not mentioned on any videos or threads. I went out the other day and shot 100 rounds of cheap birdshot from walmart with no problems. The mossy ate them like a champ. Do you mind taking a picture on where exactly this super thin thread like ring should go. Thanks in advance.