THIS IS HOW I EXTENDED A YUGO M72 BOLT FOR MY 8MM PROJECT
BUILD AT YOUR OWN RISK........WIDE OAK TREE IS YOUR FRIEND
I WAS GOING THROUGH MY PARTS BIN AND FOUND MY PROTOTYPE EXTENTION.I DID NOT USE IT BECAUSE I DRILLED IT TOO OFF CENTER BUT YOU GET THE IDEA...OH YEAH DONT FORGET TO TAP AND THREAD THE ENDS OF THE BOLT AND EXTENSION.TRY TO USE A ROUND TYPE FIRING PIN TO REDUCE CHANCE OF PIN CHAFFING ON DRILL MARKS WHEN YOU BORE THE F.P HOLE ..A NON TELESCOPING CAR ANTENNE WORKS WELL FOR ME.
PAY CAREFUL ATTENTION WHEN EXTENDING THE SCALLOP CUT FOR EJECTOR,DON'T CUT INTO THE BORE.
ANOTHER ALTERNATIVE IS TO USE A MOSIN NAGANT CLEANING TOOL SLEEVE
THEY COME IN THE $5.00 KITS FOUND EVERY WHERE(HARD METAL)
YOU CAN TAP THE LARGER I.D THEN ADD A THREADED ADAPTER OR CUT A STEP ON THE BOLT AND RUN A DIE ON IT.
ALSO THE TWO HOLES ON THE SIDE OF THE SLEEVE CAN SERVE AS A ROLL PIN REST YOU CAN LOAD A FIRING PIN SPRING ON.
HOPE THIS HELPS.
BUILD AT YOUR OWN RISK........WIDE OAK TREE IS YOUR FRIEND
I WAS GOING THROUGH MY PARTS BIN AND FOUND MY PROTOTYPE EXTENTION.I DID NOT USE IT BECAUSE I DRILLED IT TOO OFF CENTER BUT YOU GET THE IDEA...OH YEAH DONT FORGET TO TAP AND THREAD THE ENDS OF THE BOLT AND EXTENSION.TRY TO USE A ROUND TYPE FIRING PIN TO REDUCE CHANCE OF PIN CHAFFING ON DRILL MARKS WHEN YOU BORE THE F.P HOLE ..A NON TELESCOPING CAR ANTENNE WORKS WELL FOR ME.
PAY CAREFUL ATTENTION WHEN EXTENDING THE SCALLOP CUT FOR EJECTOR,DON'T CUT INTO THE BORE.
ANOTHER ALTERNATIVE IS TO USE A MOSIN NAGANT CLEANING TOOL SLEEVE
THEY COME IN THE $5.00 KITS FOUND EVERY WHERE(HARD METAL)
YOU CAN TAP THE LARGER I.D THEN ADD A THREADED ADAPTER OR CUT A STEP ON THE BOLT AND RUN A DIE ON IT.
ALSO THE TWO HOLES ON THE SIDE OF THE SLEEVE CAN SERVE AS A ROLL PIN REST YOU CAN LOAD A FIRING PIN SPRING ON.
HOPE THIS HELPS.