{"product_id":"daniel-defense-a1-5-fixed-rear-sight","title":"Daniel Defense A1.5 Fixed Rear Sight for AR-15","description":"\u003cp\u003eThe Daniel Defense A1.5 is a fixed rear iron sight for AR-15 and M4 rifles, mounting to any Military Specification flat-top upper receiver.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eA backup sight that stays out of the way of a reflex optic — and out of the way of the charging handle, which is the part most rear sights get wrong.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDaniel Defense describes the A1.5 as the optimum backup iron sight for shooters using today's most popular reflex optics, and the reason is its profile: it is lightweight and streamlined enough to sit under a red dot without cluttering the sight picture. It also accommodates M4-type rifles without interfering with charging handle operation, which is the practical failure of a tall rear sight and the thing you only discover after fitting one.\u003c\/p\u003e\u003cp\u003eConstruction is one piece, machined from 6061 aircraft-grade aluminium with a Military Specification Hard Coat Anodized finish. It installs on a flat-top upper with a slotted fastener threaded into a self-locking steel insert, so there is no separate nut to lose and nothing to work loose in use. It weighs 1.7 oz (48 g).\u003c\/p\u003e\u003cp\u003eBeing fixed rather than folding means there is nothing to deploy and nothing to fail, which is why fixed sights persist on rifles that are shot deliberately — including a UK straight-pull AR-15 set up for irons or for irons behind a dot.\u003c\/p\u003e\u003ch3\u003eWhy shooters choose the A1.5 Rear Sight\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined for reflex optics\u003c\/strong\u003e — sits under a red dot without dominating the window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClears the charging handle\u003c\/strong\u003e — designed to work on M4-type rifles without fouling it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-piece construction\u003c\/strong\u003e — nothing hinged, nothing sprung, nothing to deploy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6061 aircraft-grade aluminium\u003c\/strong\u003e — Military Specification Hard Coat Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-locking steel thread insert\u003c\/strong\u003e — a slotted fastener into a secured insert, not a bare tapped hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.7 oz (48 g)\u003c\/strong\u003e — the weight of a backup sight should be forgettable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat the A1.5 Rear Sight fits\u003c\/h3\u003e\u003cp\u003eFits any Military Specification flat-top upper receiver on AR-15\/M4 rifles, including UK straight-pull AR-15 builds, and secures with a slotted fastener threaded into a self-locking steel insert. It is a fixed, non-folding sight, so it stands proud at all times — suited to a dedicated iron-sight rifle or a permanently deployed backup behind a red dot, rather than to a rifle wearing a large magnified scope. Its matching front is the \u003ca href=\"\/products\/daniel-defense-rail-mounted-fixed-front-sight\"\u003eDaniel Defense Rail Mounted Fixed Front Sight\u003c\/a\u003e at £99.99. \u003cstrong\u003eIf you need both, buy the pair as a set:\u003c\/strong\u003e the \u003ca href=\"\/products\/daniel-defense-ar-15-iron-sight-set-rock-lock\"\u003eDaniel Defense Rock \u0026amp; Lock AR-15 Iron Sight Set\u003c\/a\u003e contains this rear sight and that front sight for £189.99, against £249.99 for the two singles — a £60.00 saving. Buy this sight on its own only if you need the rear alone.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePlatform\u003c\/th\u003e\n\u003ctd\u003eAR-15 \/ M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eMilitary Specification flat-top upper receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eFixed rear iron sight (Rock \u0026amp; Lock®)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e6061 aircraft-grade aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMilitary Specification Hard Coat Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e1.7 oz (48 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMount interface\u003c\/th\u003e\n\u003ctd\u003eSlotted fastener into a self-locking steel thread insert, on a flat-top upper receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eDaniel Defense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003e19-064-11002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eFixed, low and out of the way. \u003cstrong\u003eOrder the Daniel Defense A1.5 Rear Sight today\u003c\/strong\u003e — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExplore more:\u003c\/strong\u003e \u003ca href=\"\/collections\/iron-sights-backup-sights\"\u003eIron Sights \u0026amp; Backup Sights\u003c\/a\u003e, \u003ca href=\"\/collections\/ar-15-parts-accessories\"\u003eAR-15 Parts \u0026amp; Accessories\u003c\/a\u003e or browse all \u003ca href=\"\/collections\/daniel-defense\"\u003eDaniel Defense\u003c\/a\u003e.\u003c\/p\u003e","brand":"Daniel Defense","offers":[{"title":"Default Title","offer_id":42843570470992,"sku":"19-064-11002","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/4978\/1328\/files\/DD19-064-11002_1_HR.jpg?v=1786567879","url":"https:\/\/xtremetacticalgunparts.co.uk\/products\/daniel-defense-a1-5-fixed-rear-sight","provider":"Xtreme Tactical Gun Parts","version":"1.0","type":"link"}