No trouble, all explained. That's understood and understandable. Be safe; the rifle issued to you w/ its rail, its forend, its sight, will be perfectly fine as-is and go bang when where you want. My two cents worth little - Make the new one 2nd nature. Practice practice, hold hold, move move, aim aim, repeat often. No difference in use-terms from your other, just keep handling that rifle more and more and then more to make it become 2nd nature or a tool like any other without thought. Good luck.

