AR-556 5.56 NATO M4 Flat-Top Autoloading Rifle w/ Barrett Brown Cerakote Finish
About this product
Manufacturer: Ruger
Model: AR-556
Model Number: 8503
Caliber: 5.56 NATO
Weight: 6.50 lbs.
Length: 32.25 – 35.50 in.
Length of Pull: 10.25 – 13.50 in.
Width: 2.50 in.
Height: 8.00 in. (Without Magazine)
Capacity: 30-Rounds
Buttstock: Six-Position Telescoping / Mil-Spec Buffer Tube / Barrett Brown
Handguards: Heat Resistant Glass-Filled Nylon / Barrett Brown
Grip: Ergonomic Improved Trigger Reach / Enlarged Trigger Guard Opening
Sights: Elevation Adjustable Front / Windage Adjustable Ruger® Rapid Deploy Folding Rear (Front Sight Tool Included)
Upper Receiver: Flat Top 7075-T6 Aluminum Forging / Forward Assist Dust Cover and Brass Deflector / Type III Hard Coat Anodized
Lower Receiver: 7075-T6 Aluminum Forging / Type III Hard Coat Anodized | Cerakote Barrett Brown Finish
Bolt Carrier Group: Staked Gas Key / Chrome Plated Bolt Carrier ID and Gas Key ID / Matte Black Oxide Finish
Bolt: 9310 Alloy Steel / Shoot Peened / PT Tested
Barrel:
16.10 in. Medium Contour
Cold Hammer-Forged 4140 Chrome-Moly Steel
1:8 Twist Stabilizes Bullets from 35 to 77 Grain
M4 Feed Ramp Cuts
PT Tested
Threaded ½ – 28 with Ruger Flash Suppressor
Barrel Contour is .850 Under the Handguard .750 Under the Gas Block .700 Forward of the Gas Block
Matte Black Oxide Finished
Gas Block:
A-2 F-Height Pinned in Place
Multiple Sling Attachment Points and with QD Port and Bayonet Lug
Machined Low-Glare Serrations on Angled Face
Barrel Nut/Delta Ring:
Patent Pending Design
One Person Removal
Accepts Standard Handguards
Uses Standard Wrench Can be Swapped with a Mil-Spec Nut if Desired Brand new AR-556 5.56 NATO M4 Flat-Top Autoloading Rifle w/ Barrett Brown Cerakote Finish
What’s in the Box
AR-556 5.56mm Barrett Brown Cerakote
(1) 30-Round Magazine
Cable Lock
Owner’s Manual
FFL transfer required
This item is a firearm and ships only to a licensed FFL dealer, never to a home address. At checkout, enter your preferred dealer as the shipping address, or leave it blank and we will assign a licensed dealer near you at no extra cost. You complete the background check and paperwork with the dealer when you pick up.
California buyers: handguns must be on the California roster for delivery to a California FFL, a Firearm Safety Certificate (FSC) and DROS are handled at the dealer, and the 10-day waiting period applies. Out-of-state buyers receive the firearm through their own local FFL under their state's rules.
Specs at a glance
Key attributes
| Transfer | Ships to your FFL dealer |