gunrunnerhell: HK MP5K/10 The hard to find 10mm Auto chambered variant of the MP5. Both the .40 S&W and 10mm Auto versions have a bolt-hold open feature unlike the 9x19mm original. They also use a straight boxed polymer magazine instead of a curved

gunrunnerhell: HK MP5K/10 The hard to find 10mm Auto chambered variant of the MP5. Both the .40 S&W and 10mm Auto versions have a bolt-hold open feature unlike the 9x19mm original. They also use a straight boxed polymer magazine instead of a curved

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from: https://www.tumblr.com/blog/view/jed98/135099707503