Product code: Magpul popular mbus
Magpul MBUS. Brand new, never used. Comes with sight adjustment tool, and the popular Allen wrench for attaching to rail. They flip up at press of the button. Here's 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 popular Allen wrench for attaching to rail. They flip up at press of the button. Here's 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.