Hello,I am a newbie so please let me know if this is not the right location for this post.I have a Feinwerkbau Sport 124 (imported by Beeman) air rifle. The Cocking Lever will not stay engaged with the Cocking Lever Shoe. I live in Northern Indiana and am looking for the closest shop/person who could fix the rifle. I have a new Cocking Shoe but have no experience working on air rifles. Also I am not sure if installing the new Cocking Shoe will fix the problem.Thank You for your help!Kevin