The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War. Similar to other underwater firearms, it fires a special 4.25-inch (108 mm) metal dart as its projectile.

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    Primary Weapon System MOD1 Pistol Buffer Tube - $19.95 (Free S/H)

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    Mk12 SPR Mod1 Build

    As many of you probably have experienced, playing the clone game can be extremely time consuming. After nearly 2 years of parts hunting the mk12 is finally nearing completion. I recently purchased the optic, which has been on the list for some time. (Leupold mark 4 2.5-8x36 Mr/t with m2...
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