Brass catcher for side charger upper receivers

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Brass catcher for side charger upper receivers

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Brass catcher for side charger upper receivers

Brass catcher for side charger upper receivers

Brass catcher for side charger upper receivers

BCA trash or treasure? I tried out the side charging 20 .223 Wylde so you don't have to. my review in the comments: : r/ar15

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