URU SUBMACHINE GUN NON- FIRING DUMMY. DETAILS OF THE FUNCTION AND FIELD STRIP

AGAIN, THIS IS A NON FIRING TOY AND WILL REMAIN AS SUCH- NO TRUNION, BARREL OR COMPLETE BOLT /FIRING PIN. IT IS MADE OF SOFT MILD STEEL, LITERALLY HARDWARE STORE PIPES AND TUBING. NO TEMPER OR HARDENING... Just wanted to post a close-up of the relationship of the selector and trigger/sear/disconnect interplay. Note in SA position the disconnect rear sear comes up to catch the bolt when trigger is depressed. Let go - and the bolt loudly jumps to the main sear. In A position - both sears stays down as a selector cam lobe keeps them there. I tried to make a very simple relationship and the assembly of upper and lower. The only screws I have- 2 for the flat trigger spring guard and one screw that attaches the pistol grip trigger guard. Those don,t need to come off. Thanks for watching
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