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SIG 556 question?

Discussion in 'Rifle Country' started by rcmodel, Mar 18, 2008.

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  1. rcmodel

    rcmodel Member in memoriam

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    What is the little ring-thing that hangs down under the gas block?
    SIG 550 Bi-pod mount?

    It looks like an industrial-grade hooded front sight, but obviously is a fixed part that doesn't swivel 180 degrees to the top of the rifle.

    What is it?

    rcmodel
     
  2. earthling?

    earthling? Member

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    On the 556's predecessor, the Sig-550, you slide a bayonet lug in and secure it with a pin through the hole. I haven't heard of a specific bayonet for the 556. Maybe the 550 bayonet is compatible with the 556.
     
  3. G17Steve

    G17Steve Member

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    Yeah its for the bayonet,I think the sig550 series one will work.I seem to remember someone on one of the sig556 forums having one.
     
  4. rcmodel

    rcmodel Member in memoriam

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    O.K.!

    Hadn't thought of a bayonet lug mounting point looking like that.

    Thanks for the info!

    rcmodel
     
  5. sinistr

    sinistr Member

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    i havent had a sig 550 in a few years but if i remember correctly that is for a slingpoint.the bayo lug was ground off.
     
  6. Destructo6

    Destructo6 Member

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    There is a peg that slides in there and is retained by a rollpin/split pin/tension pin or whatever you want to call it. The peg locks the bayonet in place.

    There's a bunch of them for sale on ebay.
     
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