Home CMMG CMMG Mk57 SBR (Suppressed)

CMMG Mk57 SBR (Suppressed)

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SBRs are Stupid!

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21 COMMENTS

  1. The 5.7X28 is basically a  sawed off 5.56.     5.7X28 makes sense in an SBR.    How much gas is coming back into your face with the SBR suppressed with this caliber.        45 ACP and 9mm is a semi auto SBR is really really stupid.

  2. I think that thing is awesome! The sbr thing seems not much worth it and confusing but then you go and show that thing and now I'm thinking I should figure out more about getting an sbr… specifically that one. Doesn't look to have much kick. Pretty cool little round. Looks like a beefy version of 17hmr. I like.

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