Ruger AR-15 SR-556FB Gas Piston Upper Receiver Assembly 5.56x45mm NATO 16" Barrel
- Upper Receiver: AR-15 Flat-Top Gas Piston Upper
- Barrel Length: 16"
- Barrel Contour: M4
- Barrel Material: 41V45 Mil-Spec Chrome Lined, Cold Hammer Forged
- Muzzle Thread Pattern: 1/2"-28
- Chrome Lined: Yes
- Barrel Finish: Matte
- Twist Rate: 1 in 9"
- Chamber: 5.56x45mm NATO
- Bolt Carrier: Chrome Plated Bolt, One-Piece Bolt Carrier
- M4 Feed Ramps: Yes
- Muzzle Device: A2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: Two-Stage Piston
- Handguard: Quad Rail, Free Float
- Sights: Troy Industries Front and Rear Folding Sight
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commerical
- Extras: 3 Low Profile Rail Covers, 3 30-Round MagPul Pmag Magazines
- Weight: Not Listed by Manufacturer
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
- The total weight of the product, including the product’s packaging as it sits on our shelf. Since some products ship directly from the Manufacturer, their weight may be unavailable. Because of variations in the manufacturing process, similar products may have differing weights. Unless the product is designated as “Ships Alone”, Shipping Weight does not include the shipping box or packing materials associated with your order. Shipping Weight: 13 Pounds
- Product ships from MidwayUSA, separate from any other products on your order due to its size. Products that are Shipped Alone incur separate "Per Order" and "Per Pound" shipping charges. Ships Alone: Yes
Thank you! Your valuable feedback helps improve our product information and offering.
The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.
DPMS AR-15 Takedown Pin Punch Delrin
AR-Stoner Magazine AR-15 223 Remington with Anti Tilt Follower...
$11.99 - $17.99Save up to $9.00 (33%)
Real Avid Ruger Gun Tool Multi-Tool
AR-Stoner Customizable Lower Receiver Parts Kit AR-15
Sale$24.99Save $5.00 (17%)
CJ Weapons Chamber Maid Rifle Bore Brush 223 Remington AR-15 8...