Hop-up CNC chamber set, metal, AK, SHSCNC metal hop-up chamber AK from SHS (ref. PPS). Precision metal chamber is made on precision CNC machines from one piece of high-strength aluminum 7075 (aeronautical alloy) helps reduce unwanted air leakage during firing. To better serve the function of a rubber o-ring on the rear, which fits into a hole in the head of Gearbox version 3rd. Included are all small and regulatory pieces, lock barrel, hop-up rubber and brass spacer ring.
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