
Geissele Automatics
08-522S-Geissele
810081134620
08-522S
Geissele Super Duty MOD 1 5.56 NATO 11.5" DDC SBR 08-522S carries the same core Super Duty engineering as the ambidextrous MOD1-A builds, just on a standard Mil-Spec lower rather than the billet ambi receiver - a straightforward, proven configuration for shooters who don't need mirrored bolt/mag controls.
The barrel is cold hammer forged, chrome-lined, and cut to a 1:7 twist on Geissele's tapered profile, running a carbine-length gas system through a Super Compact Gas Block with a .067" gas port sized specifically for this length. This Geissele Super Duty 11.5 build channels that gas through a Nanoweapon®-coated Reliability Enhanced Bolt Carrier Group with a forged Stressproof Bolt, holding up to sustained round counts better than standard bolts.
The Super Duty Geissele 11.5 platform's SSA-E X® trigger with Lightning Bow® splits the difference between a classic M4 trigger and a flat-bow design, giving a smooth first-stage takeup and a crisp second-stage break. A 10.5" MK16 rail with Geissele's Center Tab mating keeps the front end rigid, and a B5 Systems Enhanced SOPMOD stock rides a mil-spec buffer tube with QD endplate for a solid, adjustable cheek weld.
This Geissele Super Duty SBR, chambered in Geissele Super Duty 5.56, delivers the same engineering as its pinned-and-welded siblings in a true short-barrel configuration for shooters ready to make the NFA transfer.
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