Drug cartel DIY open-bolt automatic rifles

A development in improvised weaponry spearheaded by South America’s drug cartel armorers has been the blow-back operated open-bolt automatic rifle. The simple solution to the usual intricacies of a typical assault rifle’s locking, delay or gas operation is to essentially make a scaled-up submachine-gun with a very heavy bolt capable of operating at much higher pressures. Using a fixed firing pin and firing from the open-bolt position allows for relatively simple construction with minimal components. Police helicopters are rumored to be some of the intended targets.
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One thought on “Drug cartel DIY open-bolt automatic rifles

  1. pork rinds

    Looks like the barrel is short on the .50 bmg for a good reason. With the short barrel, you might be more likely to get away with straight blowback in such a big caliber. I wonder if the ammunition had to be lubricated for the gun to work?



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