Ruger AR-556

The Ruger AR-556 line of rifles and pistols is as diverse in price and features as the chanverings offered. Available in 5.56 NATO, 450 Bushmaster, 350 Legend, and 300 Blackout depending on the model and style, the AR-556 line of modern sporting rifles and pistols Ruger AR-556 can be adapted to a wide variety of rolls.

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Every Ruger AR-556 is equipped with a cold hammer forged barrel, 7075-T6 Aluminum upper and lower receivers, shot-peened and proof-tested 9310 steel bolt, and 8620 steel bolt carrier for rugged reliability and durability. The inside diameter of the carrier and gas key are chrome plated and the key is staked for longevity.

The standard “base” model chambered in 5.56NATO/.223REM is equipped with a 16.10” threaded barre,l carbine length gas system, single stage trigger, A2 adjustable front post, and Ruger Rapid Deploy flip up rear sights. This model is available with either a glass filled nylon handguard and six-position, telescoping, M4-style buttstock or a glass filled nylon Magpul MOE M-LOK compatible handguard with six-position, telescoping, Magpul MOE Carbine buttstock and Magpul pistol grip. State compliant versions are available.

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The AR-556 Free-Float model with 16.10” threaded barrel features an 11” M-Lok compatible handguard with full length rail, six-position, telescoping, M4-style buttstock and mil-spec buffer tube. This optic ready model is equipped with a heavy contour, cold hammer-forged alloy barrel with 1:8" twist and single stage trigger. The AR-556 Free-Float is available in 5.56NATO/.223REM with 30 round and state compliant 10 round versions available. The freefloat is also available in 300 Blackout.

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Ruger’s top-of-the-line AR-556 MPR rifles are available with 18” and 16.1” barrels chambered in 5.56NATO/.223REM as well as 450 Bushmaster with an 18.63” barrel and 350 Legend with a 16.38” barrel. Every MPR rifle is equipped with a Ruger Elite 452 AR-Trigger featuring a smooth, crisp, 4.5 pound trigger pull and Ruger radial port muzzle break. The 16.1” 5.56NATO model features a B5 Systems Type P23 grip and Bravo collapsible buttstock with a lightweight 13.50" aluminum M-Lok handguard while the 18” 5.56NATO, 450 Bushmaster, and 350 Legend models are equipped with a 15” freefloat handguard, Magpul MOE grip, and MOE SL collapsible buttstock. A state compliant 5.56NATO model is available.

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Rugger AR-556 Pistols feature the same tough internal components as the rifles with SB Tactical SBA3 Pistol Stabilizing Brace, carbine length gas system and a single stage trigger. Available 5.56NATO and 300 Blackout models are equipped with a 10.5” barrel and 30 round capacity while the 350 Legend model sports a shorter 9.5” barrel with a 5 round magazine.

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