Zak, I am thinking about getting a 9mm suppressor. There are about a thousand different models available. I want to use it on a Glock and on an AR. Some have the LID built in(YHM Cobra). Can these be used on a carbine with the LID in place? I'd like one to work with both guns, but didn't know if I had to get one with a removeable LID or not. Thanks in advance.