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SureFire doesn’t use the M.I.T.E.R. mount, AAC does.
http://www.advanced-armament.com/pdf/manuals/aac_manual_spr-m4.pdf
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I don’t have one but it appears it is to “tune” poi to the same location suppressed as unsuppressed.
Looks like a good concept.
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The term is “reflex suppressor”. The mount/suppressor goes over the barrel unlike an end mount.
AFAIK, SureFire has stopped making the reflex for 5.56 (model FA556AR).
Differences between SPR M4 and the M4-2000
http://www.youtube.com/watch?v=0yTQZNKv0ig
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