The GDU Super Timmy RIb is a steroid injected version of the original. With the addition of 11 more tapped 1/4-20 holes and 15 more tapped M4 holes, the super rib brings a lot more to the table. It rib retains 3 keyed 3/8-16 anti-rotation tapped holes. A new front facing edge projects forward providing a low-profile crimp-grip, while also allowing for possibility of front mounted accessories. Works perfect with the GDU Rosette adaptor. (GDU Rosette Adaptor Sold Separately)
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