Geissele Super Gas Block (SGB)

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  • Geissele Super Gas Block
  • Geissele Super Gas Block (SGB)
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The Geissele Automatics Super Gas Block for .750" barrels is a hardened stainless steel gas block designed to fit under most full length free floating rails such as the Geissele Super Modular Rail and many others.  The bore of the SBG is machined to closely fit around .750" diameter mounting bosses found on most AR-15 and AR-10 type rifles.  There are two possible mounting solutinos that can be use for fastening the SBG to the rifle barrel.  This gas block offers both set-screw and pinned installation methods.  Please consult the installation instructions for your use.


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