Nothing new about that. The De Lisle Commando Carbine of WW2 used a spiral diffusion system (later used in the Sterling Mk 5/L34A1 silenced SMG).
Nothing new about that. The De Lisle Commando Carbine of WW2 used a spiral diffusion system (later used in the Sterling Mk 5/L34A1 silenced SMG).
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