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Top rail for the SIG 55x series rifles that do come only with the diopter sights and no top rail for mounting optics. The short B&T mounting rail for the SIG assault rifles 550/551/552/553 as well as for their civilian counterparts is the perfect base for mounting any kind of optic.


  • 12 slot picatinny rail
  • fits SIG 55x pistols/ SBRs/ rifles with only diopter sights
  • One top screw to torque down rail set
  • made by SB&T Switzerland
  • made in Switzerland

B&T SIG 55x Picatinny Rail (top)

SKU: 3159
Out of Stock
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