Hello All, Native Minnesotan, displaced to Okinawa finishing up a career with Air Force Rescue, en-route back to MN to resume shooting hobbies. Big fan of .308 Ishapore Enfield/Scout rifle modification. Hope to add ruggedized peep sight without too major a modification. Hope not to offend purist Enfield fans. Simplified modification advice solicited, and inputs welcomed. Considering HK G3 rear sight adaptation to charger bridge, or AR/M-16A2 rear sight adaptation to same. Any advice appreciated... Thanks!