The wobble is normal.
It becomes more noticeable with a forward grip...
The loose tolerance is what helps contribute to the 500's reliability in varying conditions.
The tighter the tolerance, the higher the chance for failure when conditions aren't optimal. It functions the same whether at an indoor range or out in the field when leaves or other debris might accidentally get caught in the action bars. The 500 action works equally well when clean, dirty, grimy, or even downright filthy...
Very nice looking piece.
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