I just looked at this on their website. It says you must pull the flash hole liner. I assumed you could use it without doing that. I have white lightning vents in all my rifles. I guess it won’t work for me. Unless I’m missing somethingYes, The RMC is fien, also try Track of the Wolf and several others for best prices= etc. This is mine, with adaptors etc. and also my Ramrod puller, which is also a big help!