OBi LINK SYSTEM -- FLUSH CUP

FLUSH CUPS Made from all-steel construction, it provides exceptional strength and security, allowing multiple swivel positions to be added to any synthetic or wood stock firearm.  Select Base Style in Menu Above Limited Rotation - Stainless Steel - Threaded, Prevents twisting of tactical slings Non-Threaded - Allows for a cleaner finished appearance - Full Rotation *Requires some installation Drill a 0.5" (.500) or a 33/64˝ (.515) hole in stock 9/16˝ to 5/8˝ deep and tap with a 9/16˝-18UNF-2B tap to depth. *FLUSH CUP* Stock NOT included QD NOT included