The Ruger® AR-556® Semi-Auto Rifle with Free-Float Handguard operates with direct-impingement and a rifle-length gas system. The lower receiver comes equipped with a Magpul® MOE® pistol grip and a MOE SL™ 6-position, collapsible buttstock on a Mil-Spec buffer tube. Upper and lower receivers are CNC-machined from 7075-T6 aluminum forgings and Type III hard-coat anodized for maximum durability. An 11'' free-float, M-LOK® handguard features accessory attachment slots at 3:00, 6:00 and 9:00 positions, and a continuous Picatinny rail interface with the flat-top, railed, upper receiver. The upper receiver features a forward assist, dust cover, and brass deflector, while the Ruger® single-stage trigger offers a smooth, crisp break at approximately 4.5 lbs. The bolt carrier and gas key are chrome-plated to provide exceptional resistance to hot gases; and the gas key is securely staked to prevent loosening during extensive fire. The cold hammer-forged steel alloy barrel boasts a 1:8'' twist ratio to maximize accuracy with bullets ranging from 35 to 77 grains, and features an M4 feed ramp, and black Nitride finish for superior corrosion and moisture resistance. A factory-installed Ruger radial-port flash suppressor is attached to the 1/2''x28 threaded barrel, and is easily removed to accomodate aftermarket muzzle devices. The Ruger AR-556 Semi-Auto Rifle comes with one 30-round Magpul® PMAG® detachable box magazine. Made in USA.

DETAILS

Type: Rifle: Semi Automatic

Model Series: AR-556

Caliber/Gauge: 5.56 NATO

Capacity: 30+1

Barrel Length: 16.1 in.

Minimum/Overall Length: 32.25 in.

Model Specific: AR-556

Chamber Length: 0 in.

Frame Finish: Black

Grips: Improved Trigger-reach

Stock: Black Synthetic Collapsible

Features: 11 inch Free Float HandguardM-LOK Attachment Slots

Extended Length: 35.500

Finish: Black

Magazine Count: 1

Gas System Length: Carbine

Operating System: Direct Impingement

Frame Material: 7075 T6 Aluminum Upper & Lower

Trigger Guard: Enlarged

Barrel Configuration: Single

Barrel Description: Cold Hammer-forged

Barrel Twist: 1-8

Muzzle: 1/2X28, Ruger Flash Suppressor

Rifled Barrel: Yes

Minimum Pull Length: 0 in.

Other Features: Direct-impingement system

Rifle-length gas system

11 in. free-float, M-LOK handguard

MOE SL 6-position buttstock

MOE pistol grip

Black Nitride finished barrel

Radial-port flash suppressor

Forward assist and dust cover

Flattop upper receiver

1:8 in. twist rifling

Includes one 30-round PMAG

Ruger AR-556 MPR 5.56 NATO Semi-Auto Rifle