{"product_id":"sturm-ruger-amp-co-ruger-ar-556-mpr-5-56-nato-223-rem-18-quot-bbl-30rd","title":"Ruger AR-556 MPR 5.56mm\/223 Rem 30rd Magazine 18\" Barrel","description":"\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cul\u003e\t\u003cli\u003eLower receiver is fitted with Magpul� MOE� grip and MOE SL? collapsible buttstock on the Mil-Spec buffer tube.\u003c\/li\u003e\t\u003cli\u003eHandguard is free-floating for accuracy and the slim 15\" length provides enhanced ergonomics and support.\u003c\/li\u003e\t\u003cli\u003eMade from aerospace-grade 7075-T6 aluminum forging the flattop upper receiver includes a forward assist dust cover and brass deflector and is Type III hard coat anodized for maximum durability.\u003c\/li\u003e\t\u003cli\u003eBolt is machined from 9310 alloy steel and is shot peened and pressure (proof) tested to ensure strength structural integrity and durability.\u003c\/li\u003e\t\u003cli\u003eThe Ruger� Elite 452? AR-Trigger is a two-stage trigger that offers a smooth crisp 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a 30% faster lock time over standard MSR triggers.\u003c\/li\u003e\t\u003cli\u003eRifle-length gas system provides smoother operation and reduces felt recoil.\u003c\/li\u003e\t\u003cli\u003eMagpul� M-LOK� accessory attachment slots along the 3:00 6:00 and 9:00 positions with additional slots on the angled faces near the muzzle.\u003c\/li\u003e\t\u003cli\u003eCold hammer-forged 4140 chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy longevity and easy cleaning. The 1:8\" twist rate stabilizes bullets from 35 to 77 grains and the 5.56 NATO chamber allows the use of both 5.56 NATO and .223 Rem. Ammunition. M4 feed ramps provide improved operational reliability and the matte black nitrided finish provides corrosion resistance.\u003c\/li\u003e\t\u003cli\u003eChrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing. A matte black oxide finish on the exterior of the bolt carrier provides corrosion resistance.\u003c\/li\u003e\t\u003cli\u003eRuger� muzzle brake is a radial port design that significantly reduces felt recoil and muzzle movement. The 1\/2\"-28 threaded barrel allows for standard muzzle accessories to be installed.\u003c\/li\u003e\t\u003cli\u003eAlso includes: One 30-round Magpul� PMAG�.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO \/ 223 REM \t\u003cli\u003e\n\u003cstrong\u003eStock:\u003c\/strong\u003e Black Synthetic Collapsible\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eFront Sight:\u003c\/strong\u003e None\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eRear Sight:\u003c\/strong\u003e None\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 18\"\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eThread Pattern:\u003c\/strong\u003e 1\/2\"-28\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e Free-Float M-LOK�\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eTwist:\u003c\/strong\u003e 1:8\" RH\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 30\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type III Hard Coat Anodized\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 8\"\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.8 lb.\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 35\" - 38.25\"\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eLength of Pull:\u003c\/strong\u003e 11.10\" - 14.40\"\u003c\/li\u003e\t\u003cli\u003e\n\u003cstrong\u003eGrooves:\u003c\/strong\u003e 5\u003c\/li\u003e\u003cbr\u003eRifles\u003cbr\u003e08514","brand":"Sturm Ruger \u0026 Co","offers":[{"title":"Retail","offer_id":45131290607753,"sku":"UR8514","price":1072.55,"currency_code":"USD","in_stock":false},{"title":"Member","offer_id":45131291689097,"sku":"UR8514","price":802.99,"currency_code":"USD","in_stock":false},{"title":"Premium Member","offer_id":45131291721865,"sku":"UR8514","price":766.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/2813\/4793\/files\/UR8514.jpg?v=1767635806","url":"https:\/\/christianvigilant.com\/products\/sturm-ruger-amp-co-ruger-ar-556-mpr-5-56-nato-223-rem-18-quot-bbl-30rd","provider":"Christian Vigilant","version":"1.0","type":"link"}