{"product_id":"primary-arms-slx-md-21-red-dot-sight-acss-cqb-reticle-autolive-810028","title":"Primary Arms SLx MD-21 Red Dot Sight ACSS-CQB Reticle AutoLive – 810028","description":"\u003cp\u003eThe \u003cb\u003ePrimary Arms SLx MD-21 ACSS-CQB\u003c\/b\u003e brings the speed-focused \u003cb\u003eACSS-CQB reticle\u003c\/b\u003e — a fine centre aiming point inside a large outer ring — to the value 21mm AutoLive red dot sight.\u003c\/p\u003e\u003cp\u003eAutoLive wakes the sight on movement, side push-buttons cycle night-vision-compatible brightness, and the aluminium housing is waterproof and shockproof. Low and absolute co-witness mounts included.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eHow It Compares\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003ePlain dot instead? The \u003ca href=\"\/products\/primary-arms-slx-md-21-red-dot-sight-2-moa-autolive-810027\"\u003eMD-21 2 MOA\u003c\/a\u003e. Solar backup? The \u003ca href=\"\/products\/primary-arms-glx-md-21s-red-dot-sight-acss-cqb-reticle-solar-autolive-810026\"\u003eGLx MD-21S ACSS\u003c\/a\u003e. New to ACSS? Read \u003ca href=\"\/blogs\/news\/what-is-the-acss-reticle\"\u003eour ACSS guide\u003c\/a\u003e; browse \u003ca href=\"\/collections\/rifle-dot-sights\"\u003erifle dot sights\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eACSS-CQB reticle — centre dot + fast outer ring\u003c\/li\u003e\n\u003cli\u003eAutoLive motion sensing (CR2032)\u003c\/li\u003e\n\u003cli\u003eSide push-button brightness, NV compatible\u003c\/li\u003e\n\u003cli\u003eLow + absolute co-witness mounts included\u003c\/li\u003e\n\u003cli\u003eWaterproof, shockproof aluminium; lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eReticle\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eACSS-CQB (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePower\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032; AutoLive motion sensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSize\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e21mm micro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eMounts\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eLow + absolute co-witness (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eSKU \/ MPN \/ UPC\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003ePA-SLX-MD-21-ACSS \/ 810028 \/ 818500018261\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cb\u003eWhat's Included\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSLx MD-21 ACSS sight, low mount, co-witness riser + spacer, CR2032, tools, manual\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eUK Delivery \u0026amp; Support\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eUK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Primary Arms' lifetime warranty.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDoes the ring help with astigmatism?\u003c\/b\u003e\u003cbr\u003eMany astigmatic shooters find a ring shape easier to centre than a bare dot — see our \u003ca href=\"\/blogs\/news\/red-dot-astigmatism-guide\"\u003eastigmatism guide\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eIs it night-vision compatible?\u003c\/b\u003e\u003cbr\u003eYes — dedicated NV brightness settings.\u003c\/p\u003e","brand":"Primary Arms","offers":[{"title":"Default Title","offer_id":58206665441654,"sku":"PA-SLX-MD-21-ACSS","price":199.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0337\/3216\/5771\/files\/primary-arms-slx-md-21-red-dot-sight-acss-cqb-reticle-autolive-810028-1.jpg?v=1785210452","url":"https:\/\/xtremetactical.co.uk\/products\/primary-arms-slx-md-21-red-dot-sight-acss-cqb-reticle-autolive-810028","provider":"Xtreme Tactical","version":"1.0","type":"link"}