My brother bought one for his 10/22 too. I wish I could remember exactly what he said but he found something similar. I think it was he had an older model and a newer model and it was something about the older model housing that was just a tad bit tighter for the trigger. He decided to put it in his newer 10/22 and has had nothing but fun with it.The binary triggers from Franklin armory are definitively fun. Mine in my 10/22 has been a little finicky but I have bought the franklin armory trigger housing hoping for better reliability but haven't done the install yet.