Ruger's AR-556 MPR rifle has a rifle-length gas system which provides smoother operation and reduces felt recoil. The matte black oxide chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provides exceptional resistance to hot gases. Its lower receiver is fitted with Magpul MOE grip and a Ruger Elite 452 two-stage AR-trigger which offers a smooth, crisp, 4.5-pound trigger pull. The flattop upper receiver is made from forged aerospace-grade 7075-T6 aluminum and includes a forward assist, dust cover and brass deflector. Its handguard is free-floating for accuracy and features Magpul M-LOK attachment slots along the 3, 6 and 9 positions. The threaded, cold hammer-forged, 4140 chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy, longevity, and easy cleaning. The barrel also provides M4 feed ramps which improve operational reliability, while the American Flag finish provides corrosion resistance. includes a 30-round Magpul PMAG.
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| Grooves: | 5 |
| Thread Pattern: | 1/2"x28 |
| Hand: | Right Hand |
| Trigger: | Two-Stage |
| Barrel Length: | 18" |
| Receiver Material: | 7075-T6 Aluminum |
| Barrel Finish: | Black Nitride |
| Capacity: | 30+1 |
| Barrel Length Range: | 18" to 18.99" |
| Stock Finish Group: | Black |
| Barrel Material: | Chrome Moly Steel |
| Stock Finish: | Black |
| Magazine Type: | AR-15 |
| Weight: | 6.80 lbs |
| Weight Range: | 6 lbs to 6.99 lbs |
| Includes: | Magazine |
| Gun Platform: | AR-Style |
| Receiver Description: | Picatinny Rail |
| Receiver Finish: | American Flag Cerakote |
| Barrel Description: | Threaded |
| Caliber: | 5.56x45mm NATO |
| Metal Finish Group: | American Flag |
| Action: | Semi-Auto |
| Sights: | None |
| Model: | AR-556 |
| Max Capacity: | 30 |
| Operating System: | Direct Impingement |
| OAL: | 35"- 38.25" |
| Grips: | Black Magpul |
| Muzzle: | Muzzle Brake |
| Stock Description: | Magpul SL |
| Stock Material: | Synthetic |
| Length of Pull: | 11.10"-14.40" |
| Safety: | Safety Selector Switch |
| Trigger Pull Weight: | 4.50 lbs |
| Twist: | 1:8" |
| Series: | MPR |
