For those of you with Miroku manufactured Browning or Winchester BPCRs I’ve just posted an article on my website titled REPLACING BROWNING/WINCHESTER BPCR FRONT SIGHT SPIRIT LEVEL VIAL. If you are interested, click on the following link:
http://www.texas-mac.com/Replacing_Browning_Winchester_BPCR_Front_Sight_Spirit_Level_Vial.html

Wayne