Product code: Magpul mbus offers
Magpul MBUS. Brand new, never used. Comes with sight adjustment tool, and the Allen wrench for attaching to rail. They flip up at press of the button. Here's offers an Amazon link. https://www.amazon.com/gp/aw/d/B06XKTQVG5/ref=sspa_mw_detail_1?ie=UTF8&psc=1&smid=A2HQFQ7N4D3TB&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWwp13NParams.
Magpul MBUS. Brand new, never used. Comes with sight adjustment tool, and the Allen wrench for attaching to rail. They flip up at press of the button. Here's offers an Amazon link. https://www.amazon.com/gp/aw/d/B06XKTQVG5/ref=sspa_mw_detail_1?ie=UTF8&psc=1&smid=A2HQFQ7N4D3TB&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWwp13NParams.