Fyi, the latest model US made IDF Tavors I've seen have the IDF triangle reticle. You could change the railed version to the IDF model if IWI will sell the parts separately. I emailed them last year and they said it would be a while. The rear IDF BUIS and proprietary magnifier mount are an integral one piece "sleeve". It would replace or fill in the large opening on top of the receiver that's covered up by the picantinny rail, but it can be installed along with another small part which I forgot the name of. You would also need the front BUIS parts, not a big deal if IWI sells them. The US IDF Tavor mepro m21 mount is different from the IDF issued tavor. The ITL/MARS sight was designed to mount directly to the tavor and cowitness with the BUIS. To use the IDF's picantinny m21's on the tavor they needed a railed interface. US model tavor has an integral optic mount. The IDF use a short picantinny rail and flat top Mepro m21, which allows them to use the m21's on the tavor and m4 flat top carbines. Meprolight also makes the magnifier with the picantinny base. I wish they would have just made the U.S. Idf tavor with the short rail because it would have been easy to just remove it from the barrel assembly and install my MARS sight. Maybe IWI will make an IDF conversion kit".