Precision machined from 17-4 PH stainless steel, JKs booster piston is the component that screws onto the threaded pistol barrel, mating suppressor and pistol together. The pistons are available in 1/2×28 threads (nearly all 9mm and some other pistols) and .578×28 threads (.45 ACP and some other larger-than-9mm pistol calibers).
$99.75
Jk Armament JK155PISTON578X28 Piston 45Cal .578″x28 Stainless Steel For Pistol
14 in stock
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