UNIVERSAL SOAR RAIL (USR) Hardware Kits (Hardware Only)

THIS LISTING IS FOR USR HARDWARE KITS ONLY.  PLEASE SEE OTHER PRODUCT LISTING FOR THE USR RAILS. Overview USR (Universal SOAR Rail) is the first in our line of R-LOCK compatible mounting rails. This semi-permanent rail incorporates a 1.5" dovetail, fully compatible with the new R-LOCK standard, while maintaining backward compatibility with RRS quick-release clamps and heads. Precision-drilled 5.5mm safety-stops are milled into the rails along both edges of the rail for ambidextrous use. The R-LOCK holes, positioned at least 10mm apart, provide multiple safety-stop locations along the rail at a tightly controlled distance from the edges. The R-LOCK hole positioning also accommodates centrally-located mounting features and traditional safety-stop mechanisms while maintaining backward compatibility. The geometry was optimized for manufacturing in 6061-T6 aluminum (though harder alloys may be used) and can be milled by any machinist or gunsmith without requiring a CNC mill. The USR featur