{"product_id":"lewis-machine-tool-mrp-h-quad-rail-308-upper-receiver","title":"Lewis Machine \u0026 Tool MRP-H Quad Rail .308 Upper Receiver","description":"\u003cp style=\"white-space:pre-wrap;\"\u003e\u003cspan\u003eThe Lewis Machine \u0026amp; Tool MRP-H Upper Receiver Assembly is a quick and easy way to get started on your AR-10 build based off the MWS platform. It is a monolithic upper receiver that is compatible with the LMT MWS large caliber barrels like the .308, .260 Remington, 6.5 Creedmoor, and more. It uses a proprietary barrel lockup system that allows the quick change of barrels without loss of zero. The quad rail handguard features a 19.25\" top rail and 9\" inch picatinny rails at the 3, 6, and 9 o'clock positions. This MRP-H upper receiver assembly is a slick side design without forward assist and comes with the dust cover installed. Hardcoat anodized to military specifications, this AR-10 style receiver is built to last. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eMonolithic design\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003e19.25\" Total top rail length\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003e9\" Side and bottom rails\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eQuick change barrel with two locking lugs\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eDesigned for use with MWS large caliber barrels\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eSlick side design\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eIncludes dust cover\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eFour QD sling swivel slots\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"white-space:pre-wrap;\"\u003eLaser engraved T-marks\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e This item must be ordered from the distributor – please allow additional handling time prior to shipment.","brand":"LMT","offers":[{"title":"Default Title","offer_id":53123511976047,"sku":"LM308B1","price":1274.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/4016\/8047\/files\/LM308B1_00__95710.jpg?v=1779157199","url":"https:\/\/buttonhookconcepts.com\/products\/lewis-machine-tool-mrp-h-quad-rail-308-upper-receiver","provider":"Buttonhook Concepts LLC","version":"1.0","type":"link"}