For Browning BAR Auto rifle and BLR lever action. (BAR uses 9/16 ramp + .375N bead)
NOTICE: ALL WGRS RECEIVER SIGHTS ARE FURNISHED WITH THE STANDARD R-3/8 X .093 LONG SHANK APERTURE. ALL OTHER SIZES OF REGULAR AND TWILIGHT LONG SHANK APERTURES ARE AVAILABLE AS ACCESSORY ITEMS. PLEASE ORDER ACCORDINGLY. OPTIONAL "GHOST RING" APERTURE ALSO AVAILABLE AS ACCESSORY ITEM.