Sorry
You are up creek without a paddle, the part number you need for a LB7 is
EJC1001WAM. I would try dearly to track down the guy you bought it from and get them to switch it out for the one you need. I hope you have good luck, because the horror stories I hear about on :ar15 EBAY keep getting worse and worse. Let me know if you get it squared away.
You are up creek without a paddle, the part number you need for a LB7 is
EJC1001WAM. I would try dearly to track down the guy you bought it from and get them to switch it out for the one you need. I hope you have good luck, because the horror stories I hear about on :ar15 EBAY keep getting worse and worse. Let me know if you get it squared away.