These practice rounds have a screw off end for stashing small valuables. – Source: http://store.colemans.com/cart/us-gi-20-mm-practice-round-with-removable-base-case-p-2433.html
These practice rounds have a screw off end for stashing small valuables. – Source: http://store.colemans.com/cart/us-gi-20-mm-practice-round-with-removable-base-case-p-2433.html
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