Originally Posted by
acidchylde
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You (and he as shown in the linked screenshot) can put a suppressor on it. For whatever reason you're able to choose any of the base muzzles (flash hider, compensator, suppressor, muzzle brake) EXCEPT a standard muzzle (no attachment of any kind). It's one of a couple of weapons like that.
I believe his complaint is specific to the fact that whichever muzzle you select, you use a component labeled ASR rather than SMG. While not unheard of in the game (most of the ASR Scout variants which are classed as DMRs use ASR components like muzzles and mags), there are some weapons where it might be a bug - SVD63 using SNR instead of DMR for standard muzzle but DMR muzzle brake and suppressor for example.