{"id":748977,"date":"2026-04-22T14:06:45","date_gmt":"2026-04-22T11:06:45","guid":{"rendered":"https:\/\/nbg.eu\/product\/ruger-ar-556-mpr-18-223-rem\/"},"modified":"2026-05-12T09:54:43","modified_gmt":"2026-05-12T06:54:43","slug":"ruger-ar-556-mpr-18-223-rem","status":"publish","type":"product","link":"https:\/\/nbg.eu\/it\/product\/ruger-ar-556-mpr-18-223-rem\/","title":{"rendered":"Ruger AR-556 MPR 18 Semi-Automatic Rifle .223 Rem"},"content":{"rendered":"<h2>Ruger AR-556 MPR 18 .223 Rem<\/h2>\n<p>The 18-inch MPR is built for mid-range precision, pairing an 18&#8243; cold hammer-forged barrel with a rifle-length gas system for the smoothest cycling in the MPR lineup. It retains the MPR&#8217;s premium features: a 15&#8243; M-LOK free-float handguard, the Ruger Elite 452 two-stage AR-Trigger with a crisp 4.5 lb pull, and forged 7075-T6 receivers that are Type III hard-coat anodized. The longer barrel and rifle-length gas port yield better velocity, lower port pressure, and improved accuracy on heavier bullets (up to 77 gr) \u2014 a strong choice for the shooter who wants one AR that handles both defensive and precision work.<\/p>\n<h3>Rifle-Length Gas System<\/h3>\n<p>The rifle-length gas system is the longest common AR-15 gas system. The longer dwell time means lower port pressure, which translates to less violent bolt cycling, less wear, and a softer-shooting rifle. It is the most refined setup for an 18&#8243;-class barrel.<\/p>\n<h3>18&#8243; Cold Hammer-Forged Free-Float Barrel<\/h3>\n<p>An 18&#8243; barrel extracts more velocity from the .223 \/ 5.56 than a typical 16&#8243;, especially with 69\u201377 gr match bullets. Free-floating the barrel keeps the handguard from influencing barrel harmonics, and the 5-groove cold hammer forged bore delivers outstanding accuracy straight from the factory.<\/p>\n<h3>Ruger Elite 452 Two-Stage Trigger<\/h3>\n<p>The same two-stage trigger as the 16&#8243; MPR \u2014 ~4.5 lb, crisp, predictable \u2014 is an ideal match for precision work at longer distances.<\/p>\n<h3>15&#8243; M-LOK Free-Float Handguard<\/h3>\n<p>The extra 1.5&#8243; of handguard vs. the 16&#8243; MPR gives more real estate for hand positioning, bipod attachment, and accessory mounting while still floating the barrel cleanly.<\/p>\n<h3>Premium Components Included<\/h3>\n<ul>\n<li>Ruger Elite 452 two-stage AR-Trigger, ~4.5 lb<\/li>\n<li>15&#8243; M-LOK free-float handguard<\/li>\n<li>Rifle-length gas system<\/li>\n<li>Forged 7075-T6 receivers, M4 feed ramps, Type III hard-coat anodized<\/li>\n<\/ul>\n<h3>Specifications<\/h3>\n<table>\n<tr>\n<th>Action<\/th>\n<td>Semi-auto, direct impingement<\/td>\n<\/tr>\n<tr>\n<th>Caliber<\/th>\n<td>5.56 NATO \/ .223 Rem<\/td>\n<\/tr>\n<tr>\n<th>Barrel length<\/th>\n<td>18&#8243;<\/td>\n<\/tr>\n<tr>\n<th>Barrel material<\/th>\n<td>Cold hammer forged 4140 chrome-moly, 5 grooves, free-floated<\/td>\n<\/tr>\n<tr>\n<th>Twist rate<\/th>\n<td>1:8&#8243; RH<\/td>\n<\/tr>\n<tr>\n<th>Muzzle thread<\/th>\n<td>1\/2&#8243;-28<\/td>\n<\/tr>\n<tr>\n<th>Gas system<\/th>\n<td>Rifle-length<\/td>\n<\/tr>\n<tr>\n<th>Upper \/ lower<\/th>\n<td>Forged 7075-T6 aluminum, Type III hard-coat anodized, M4 feed ramps<\/td>\n<\/tr>\n<tr>\n<th>Trigger<\/th>\n<td>Ruger Elite 452 two-stage AR-Trigger, ~4.5 lb<\/td>\n<\/tr>\n<tr>\n<th>Handguard<\/th>\n<td>15&#8243; free-float M-LOK<\/td>\n<\/tr>\n<tr>\n<th>Stock<\/th>\n<td>Magpul MOE SL, collapsible<\/td>\n<\/tr>\n<tr>\n<th>Grip<\/th>\n<td>Magpul MOE<\/td>\n<\/tr>\n<tr>\n<th>Weight<\/th>\n<td>6.8 lb<\/td>\n<\/tr>\n<tr>\n<th>Overall length<\/th>\n<td>35.00&#8243; \u2013 38.25&#8243;<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Mid-range precision AR-15 with an 18&#8243; cold hammer-forged free-float barrel, rifle-length gas system, Ruger Elite 452 two-stage trigger, 15&#8243; M-LOK handguard, and Magpul MOE SL furniture.<\/p>\n","protected":false},"featured_media":749027,"template":"","meta":{"_acf_changed":false},"product_brand":[16232],"product_cat":[14217,263,406,219,14210],"product_tag":[],"class_list":{"0":"post-748977","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-ruger","7":"product_cat-ar-15-rifles","8":"product_cat-carbines","9":"product_cat-licensed","10":"product_cat-rifle","11":"product_cat-semi-automatic-rifles","13":"first","14":"instock","15":"sale","16":"taxable","17":"shipping-taxable","18":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product\/748977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/media\/749027"}],"wp:attachment":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/media?parent=748977"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_brand?post=748977"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_cat?post=748977"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_tag?post=748977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}