Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest 21st Century based on the Soviet Russian

based on the Soviet Russian PKM Machine gun

making the weapon compact as its bolt recoils inside a tube running through the buttstock

They do not have any real dents

For training

but the request could not be fulfilled due to a lack of raw materials and available machinery for such a large undertaking

Original U.S. Navy Vietnam War Era Type A3 Oxygen Breathing Apparatus Set in Transit Chest 21st Century based on the Soviet RussianOriginal Items: Only One Set Available. In 1953, the Type A 3 OBA began to replace the Type A 2 OBA. It was a closed circuit, self contained gadget. Oxygen generated by chemicals in a canister could be inhaled for around 60 minutes, the effective time limit of the oxygen supply, independent of the surrounding atmosphere. Head straps, a set of plastic eyepieces, a speaking diaphragm, and a rubber mouthpiece were all included with the Type A 3 OBA's