Uživatel Nicholas Drummond na Twitteru: „Operating systems. HK416A7 based on M-4 design but with gas piston; HK433 based on G36 and G3 with AK47-type gas piston and bolt carrier. HK433 is lighter.
Klíč na piston Ardesa 4/6 - Kentaur Zbraně
Klíč na pistony INVESTARM . :: DAVE WESTERN GUNS s.r.o.