 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
Geissele Super Duty SD-556 14.5" 5.56 NATO OD Green Sig Romeo4H Red Dot FailZero BCG
Guns International #: 103698112 Seller's Inventory #: SD556-037037
Category: Geissele Automatics - Military Arms
Seller's Information
When emailing or calling sellers direct, please mention that you saw their listing on GunsInternational.com
Seller: National-Armory
Member Since: 5/3/24
State: Pennsylvania
Zip: 15108
Country: United States
Phone: (724) 457-8060
Platinum Seller
Number of Active Listings: 164
Total Number of Listings: 233
Seller: FFL Dealer
Return Policy: 3 day inspection and return policy on used guns.
Payment Types Accepted: CREDIT CARD, MONEY ORDER, CASHIER'S CHECK, PERSONAL CHECKS, GUN TAB
About Us: We are a large online and brick & mortar retailer near Pittsburgh, PA. We deal in new firearms as well as historical, classic, and vintage firearms. Ask us about C&R on applicable items! National Armory follows all local, state, and federal laws. It is the buyer's responsibility to know their laws before purchasing. Prices do not include shipping.
Description:
MANUFACTURER: GEISSELE AUTOMATICS
MODEL: SUPER DUTY SD-556
CONFIGURATION: SUPER DUTY 14.5" M-LOK CARBINE
YEAR MANUFACTURED: MODERN PRODUCTION
COUNTRY OF ORIGIN: UNITED STATES
SERIAL NUMBER: SD556-037037
ROLLMARKS: GEISSELE AUTOMATICS / NORTH WALES, PA / SUPER DUTY / SD-556 / CAL. 5.56 / SD556-037037
CALIBER: 5.56 NATO
CAPACITY: 30+1 ROUNDS
BARREL LENGTH: 14.50"
BARREL FEATURES: THREADED, COLD HAMMER FORGED, CHROME-LINED, MID-LENGTH GAS SYSTEM
MUZZLE / THREAD PITCH: BCM GUNFIGHTER COMPENSATOR / 1/2x28
OPERATING SYSTEM: DIRECT IMPINGEMENT
ACTION: SEMI-AUTO
TWIST RATE: 1:7
TRIGGER: GEISSELE SSA TWO-STAGE
WEIGHT (UNLOADED): 6.90 LBS
CONFLICT ORIGIN: GWOT
IRON SIGHTS: FDE MAGPUL MBUS PRO POLYMER FLIP-UP SIGHTS
OPTICS: SIG SAUER ROMEO4H RED DOT
UPPER / LOWER: 7075-T6 FORGED ALUMINUM
HANDGUARD / GRIP TYPE: GEISSELE MK16 M-LOK FREE FLOAT HANDGUARD / MAGPUL MOE GRIP
FIREARM FINISH: OD GREEN HARDCOAT ANODIZED
CONDITION: GOOD CONDITION. MINOR FINISH WEAR PRESENT
ADDITIONAL FEATURES: FAILZERO NICKEL BORON BOLT CARRIER GROUP, SIG SAUER ROMEO4H RED DOT, BCM GUNFIGHTER COMPENSATOR, ADJUSTABLE MAGPUL MOE STOCK, MAGPUL MBUS SIGHTS
WHAT’S INCLUDED: RIFLE, SIG SAUER ROMEO4H, MAGPUL MBUS SIGHTS
When Geissele builds a rifle, it's built with one purpose in mind—hard use. The Super Duty isn't a dressed-up sporting rifle pretending to be tactical. It's a professional-grade fighting carbine engineered for duty, defensive applications, high-round-count training, and shooters who expect absolute reliability every time the bolt goes into battery. From patrol work to weekend range work, this rifle is built to take abuse and keep running.
The heart of the rifle is its 14.5-inch cold hammer forged, chrome-lined barrel paired with Geissele's smooth-shooting mid-length direct impingement system. The legendary Geissele SSA two-stage trigger delivers a clean, predictable break that has earned its reputation among military professionals and serious civilian shooters alike. This particular rifle takes things a step further with a premium FailZero Nickel Boron bolt carrier group, offering exceptional lubricity, simplified cleaning, and outstanding long-term durability; while the BCM Gunfighter compensator keeps muzzle movement flat during rapid strings.
The Geissele MK16 free-float M-LOK handguard provides outstanding rigidity while maintaining a slim, ergonomic profile that feels planted in the hand. Magpul MOE furniture offers excellent control and comfort without unnecessary bulk, while the FDE Magpul MBUS folding sights provide dependable backup aiming capability. Controls are clean, intuitive, and exactly what experienced AR shooters expect from a premium duty-grade platform.
Modern readiness is where this rifle really shines. Sitting atop the receiver is a SIG Sauer ROMEO4H red dot already mounted and ready to go. The continuous Picatinny rail, generous M-LOK attachment points, and BCM muzzle device make the rifle fully prepared for lights, slings, lasers, suppressor-ready upgrades, or whatever mission-specific accessories the next owner chooses. Every major component reflects quality over compromise.
There are AR-15's... and then there are rifles that separate themselves the moment you pick them up. The Geissele Super Duty has earned its reputation by refusing to compromise where it matters—reliability, durability, and performance under hard use. This example pushes that standard even further with a FailZero Nickel Boron bolt carrier group, BCM Gunfighter compensator, and SIG ROMEO4H optic already in place. It's the kind of rifle you build after years of experience—except someone else already spent the money and made the right decisions. Whether it's your go-to defensive carbine, your next training rifle, or the centerpiece of a serious collection of modern fighting rifles, this Super Duty is ready to run hard from day one. Skip the cookie-cutter builds and bargain-bin parts. Buy the rifle that serious shooters reach for when failure isn't an option.
***Please see pictures for condition and wear***
SHIPPING INFORMATION:
IF THE ITEM YOU PURCHASE IS C&R ELIGIBLE, WE WILL ACCEPT A C&R LICENSE
WE TRY TO SHIP FIREARMS THE SAME DAY PAYMENT/FFL IS RECEIVED.
WE SHIP TO ALL 50 US STATES
IF YOU WANT INSURANCE FOR THE FINALAMOUNT PLEASE SELECT “OTHER”
PAYMENT OPTIONS:
*MONEY ORDER
*CERTIFIED CHECK
*CASHIER’S CHECK
*CREDIT CARD (3% FEE)
*IF PAYING BY CHECK PLEASE MAKE CHECK OUT TO: NATIONAL ARMORY
Layaway is available on purchases of $749.99 and above, see Additional Terms of Sales for details.
PROCEDURES:
IF YOUON A GUN AND DECIDE TO CANCEL YOURWE ARE UNABLE TO DO THAT FOR YOU PER GUN ’S POLICY. IF THE ENDS AND NO OTHER BIDS HAVE COME IN ON THAT GUN AND YOU STILL DO NOT WANT IT YOU WILL BE SUBJECT TO A 20% RESTOCKING FEE
SALES TAX:
PURCHASES ARE SUBJECT TO SALES TAX FROM
STATE & LOCAL LAWS:
CHECK YOUR LOCAL LAWS PRIOR TO . IF YOU HAVE QUESTIONS REACH OUT TO A LOCAL FFL AND THEY WILL BE ABLE TO HELP YOU ANSWER QUESTIONS REGARDING YOUR STATE'S SPECIFIC LAWS BETTER THAN WE CAN. IT IS THE BUYER’S RESPONSIBILITY TO KNOW IF HE/SHE CAN LEGALLY OWN A FIREARM AND ACCESSORIES BEFORE PLACING A BID.
DISCLAIMER
All pre-owned firearms offered by National Armory are thoroughly inspected by our on-site gunsmith to ensure they are in proper working condition. While test firing may or may not be conducted, all firearms are evaluated for basic function and safety. It is solely the buyer’s responsibility to be familiar with and comply with all federal, state, and local laws regarding firearm ownership and accessory restrictions, including but not limited to magazine capacity and prohibited features. All sales are final.
Price: $1,899.99
Rifle Caliber: 5.56x45mm NATO
Manufacturer: GEISSELE
Model: SUPER DUTY
Serial Number: SD556-037037
Barrel Length: 14.50
Condition: VERY GOOD