{"product_id":"midwest-industries-ers-flip-up-rear-sight-black","title":"Midwest Industries ERS Flip Up Rear Sight - Black","description":"• A2 style dual aperture, fully protected from accidental damage • Thick rugged pivot ears, twice as thick as the competition • Made from 6061 aluminum, mil-spec hard coat anodized to stand up to the most extreme conditions • Locking detent with double the locking surface, for maximum strength • Lock detent button with stepped down turns, to provide a surface you can grab onto if your hands are muddy of wet • Same style windage knob as on the standard M-16: .65 MOA on M-4 type rifles \/ .49 MOA on A-4 type rifles • Made in U.S.A. with Lifetime Warranty","brand":"Midwest Industries","offers":[{"title":"Default Title","offer_id":44685986660571,"sku":"MCTAR-ERS","price":109.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/files\/179900632.webp?v=1738352619","url":"https:\/\/www.atcostammo.com\/products\/midwest-industries-ers-flip-up-rear-sight-black","provider":"AtCostAmmo.com","version":"1.0","type":"link"}