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Ruger SR556FB 5.56 16" Flip Up Sights 3 Mags

Model: 5902
Item Condition: Factory New
Bud's Item Number: 60599

*This is a stock photo. Please verify that this image shows the product described by the title and description on this page before you place an order.

­  Ruger finally breaks into the AR-15 platform world with their SR-556, a gas-piston rifle chambered in 5.56, with other specifications lining up with the mil-spec regulations that we all know and rely on. The SR-556 a two-stage gas driven system with 4 different gas settings, chrome lined and plated components, Troy Industries quad rail and Troy Industries flip up irons. This is the definition of a ready-to-go set up featuring the most sought after features in the AR15 world.


  • Caliber: 5.56/.223
  • Capacity: 30
  • Weight: 7.94 lbs
  • Action: Single Action - Semi-Automatic
  • Barrel Length: 16.12”
  • Overall Length: 32.75"
  • Sights: Folding Battle Sights, Flat Top Rail for Optics
  • Stock: Collapsible Stock
  • Material: Steel
  • Finish: Black Stock and Handguard / Black rifle finish
  • Country of origin: USA

    The SR-556 offers Ruger's legendary rugged reliability and employs a patent-pending, chrome-plated, two-stage piston-driven operating system that provides the user with a cleaner, cooler-running, reliable firearm that is truly state-of-the-art. The chrome-lined gas block and chrome-plated piston and regulator work together to provide a smooth power delivery stroke to the bolt carrier, and the by-products of the gas system are vented out the bottom of the gas block, away from the bolt carrier, keeping the action clean and free from contaminants. This results in significantly improved performance over gas-driven rifles. The Ruger SR-556 features folding iron sights, a quad rail handguard providing four MIL-STD 1913 Picatinny rails, a manganese phosphate/hardcoat anodized finish, and three PMAG magazines.

    Action Semi-Automatic
    Caliber 223 Remington/5.56 NATO
    Bbl Length 16.1"
    Capacity 30+1
    Trigger Standard
    Safety Lever
    OAL 32.75"-36"
    Weight 7.94 lbs
    Stock 6-Position Black
    Finish Black


    Product Reviews
    33 Reviews. Average Rating: 4.9 of 5 Stars! [4.9 of 5 Stars!]
    5 stars:
    94% (31 of 33)
    4 stars:
    7% (2 of 33)
    3 stars:
    0% ( of 33)
    2 stars:
    0% ( of 33)
    1 star:
    0% ( of 33)
    Reviewed By: David M on 03/27/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
    I just picked it up yesterday and have not had the chance to fire it, but this Ruger SR-556FB is a real beauty! This thing is built like a TANK, and happily knowing and owning various Ruger products over the years, along with the many positive reviews, I can only expect that we will have many happy years together!

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    Reviewed By: William M on 03/17/2015 Rating: 4 of 5 Stars! [4 of 5 Stars!]
    I am very happy with the firearm from a performance standpoint, as well as all the accessories that come standard. I will have to investigate, possibly with Ruger's assistance, the functionality of the BUIS. To sight the rifle in, at 25 yards the sights require full windage right. After firing approx 300 rounds downrange in training scenarios, I didn't have one malfunction, and the receiver end of the firearm is still clean (one reason I chose a gas piston version). I would purchase this firearm again, and always recommend Buds Gun Shop to my friends.

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    Reviewed By: Todd B on 04/30/2014 Rating: 4 of 5 Stars! [4 of 5 Stars!]
    The SR-556 arrived in perfect condition, its not nearly as heavy as some people make it out to be either. Overall great gun, my only complaint, is that when i received my SR, the bolt carrier wasn't actually the shiny chrome you see in the pictures and videos, however its not black like the ones that come on the ''E'' model either, (or used to). I will have to contact Ruger and see if they made a mistake or if they are coating their bolt carriers now with a very light grayish paint. for reference this is the FB model 5902. It came with 3 30round pmags and all of the troy industries goodies as well. Like i said before great gun, i would still purchase it again in a heartbeat.

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    Reviewed By: Andy R on 02/20/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
    Received my SR556 yesterday. I have to say for my first rifle I didn't go wrong. I have always liked Ruger small arms but this rifle has me completely sold in their line of arms. This truly is as advertised and for a price that cant be beat. This rifle comes with a great stock and grip and clean, although I field stripped and cleaned mine out of the box which is a good thing to do. Buds was fast and painless on the shipping. I love the payment options too. This was my first purchase through Budsgunshop.com and I will most definitely continue to purchase from them. I cant wait for Spring to hit the range.

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    Reviewed By: Matthew P on 10/29/2013 Rating: 5 of 5 Stars! [5 of 5 Stars!]
    Great rifle! I have nothing, but great experiences with this firearm. I bought this once prices for AR-15 style rifles came down, and the best deal I've seen yet for the SR-556 has been on Buds. This rifle is very accurate. It is slightly heavier than most ar's due to the piston system and heavier barrel, but that only seems to help control recoil and improve accuracy. The rifle is very sturdy and clean in appearance. The whole package is quite nice; the rifle itself, the quad-rail, flip up sights, rail guards, soft case, lock, and three pmags. Mine did come with only one vs three pmags, but after sending a quick email to ruger, 2 new pmags and an additional soft case were sent immediately. I have nothing, but praise for this rifle. Highly recommend it! It may be a bit pricier than other ar's, but you get what you pay for and you're getting very high quality with this piece.

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