Description

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08-188S
Mfr Part: 08-188S
MAKE/MODEL: GEISSELE|SD556
CARTRIDGE: 5.56 MM NATO
CAPACITY: NA
BARREL LENGTH: 16"
FINISH: DDC
MAGAZINE TYPE: DETACHABLE
Item Details
Action Type: Direct Impingement
Barrel Length: 16"
Capacity: NA
Cartridge: 5.56 mm NATO
Finish: Luna Black
Front Sight: NA
Magazine Included: None
Magazine Type: Detachable
Muzzle: Flash Hider
Rear Sight: NA
Stock Material: Polymer
Made in the USA
Restriction
FFL
Products require a Federal Firearms License to be on file. If we don't have a FFL for you, your order will be put on hold until it is received. Please email [email protected], fax 641-623-8143 or mail a clear signed copy to: Attn: FFL Dept, 3006 Brownells Pwky, Grinnell, IA 50112. You must be 18 years of age or older to purchase Rifles and Shotguns also 21 years of age or older to purchase handguns, Lower Receivers, Suppressors.
Make Model
Make: Geissele
Model: SD556
The Super Duty Rifle features the latest in weapon technology available exclusively from Geissele Automatics. This 16” rifle chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Warcomp mounted to an in-house 16” Black Oxide Cold Hammer Forge, Chrome Lined, 1-7 twist Geissele barrel. Our barrels are precision machined and cold hammer forged utilizing the highest quality materials at our state of the art facility in North Wales, PA. The Super Mid-length gas system and Geissele Super Compact Gas Block (with bomb-proof installation) ensures reliability and optimal performance in extreme conditions and heavy use.
Exclusive to the Super Duty 16” Rifle is the brand new SSA-E X with Lighting Bow trigger. This nanocoated, two-stage trigger features a wide body and bow shape that finds the perfect balance between a classic M4 trigger and a flat body trigger. At the heart of this rifle is the Geissele REBCG (Reliability Enhanced Bolt Carrier Group). This Nanoweapon coated BCG is machined from mil-spec 8620 steel, with a properly torqued and staked, chrome lined gas key. The Cam Pin is machined from advanced, medical steel known as H13 which is also coated with Nanoweapon for maximum corrosion and wear resistance. The REBCG also features extended upper rails, providing greater stability and dramatically increasing feeding reliability.
The REBCG comes with the Geissele Stressproof Bolt. Made from Carpenter 158+, directly developed with Carpenter Steel metallurgists to create a material that is cleaner and has less impurities. This makes our Stressproof bolt stronger and more fatigue resistant. The Geissele Stressproof bolt is also forged, not machined from barstock. This allows us to optimize the grain structure of the steel to yield a bolt capable of 5 times the life of a mil-spec bolt. Each bolt is rigorously inspected, high pressure tested, mag particle inspected and Nanoweapon coated.
The Super Duty lower is precision machined from 7075-T6 aluminum and features Geissele’s Ultra Duty Lower Parts Kit featuring our Ambidextrous Super Configurable safety and Ultra Precision trigger guard. A high quality mil-spec Geissele Buffer Tube with a Super-42 in H2 buffer ensures this rifle is properly tuned out of the box.
Rounding up the package is a 15” MK16 Super Modular Rail, that mates to the Super Duty Upper Receiver via a center aligning tab that removes any chance of rail rotation. The MK16 family of rails are fielded by USASOC and renowned by operators for their performance and comfort. An Airborne Charging Handle, ensure smooth and reliable operation.
A classic A2 style grip and a B5 Systems Enhanced Sopmod Stock finalizes this high-end rifle that offers the user unmatched accuracy and performance. What is Geissele Nanoweapon?
Geissele Nanoweapon (also known as Picatinny DSL) is a family of Durable Solid Lubricant coatings which was developed by ARDEC. It is available exclusively from Geissele Automatics. We continued the development of Picatinny DSL so that its level of corrosion, wear and abrasion resistance is currently unmatched among firearm coatings. Nanoweapon is applied at low temperatures so that the underlying metallurgy of the part is non effected by the application process. Our coating also has a surface hardness roughly equivalent to synthetic diamond. This makes Geissele Nanoweapon harder than sand, easily rejecting carbon and making cleaning a breeze, on top of allowing the firearm to operate normally with less lubrication.
THIS RIFLE DOES NOT SHIP WITH A MAGAZINE
- LENGTH: 16""
- CALIBER: 5.56MM
- LOWER RECEIVER: Super Duty Lower Mil-Spec
- UPPER RECEIVER: Super Duty M4 Upper
- BCG: REBCG (Reliability Enhanced Bolt Carrier Group)
- BOLT: Geissele Stressproof Bolt
- RAIL: 15"" SMR MK16 w/ Geissele Center Tab
- TRIGGER: SSA-E X w/ Lighting Bow
- BARREL: 16"" Barrel, CHF, Chrome Lined, 1-7 Twist
- GAS SYSTEM: Super Mid-Length
- GAS BLOCK: Super Compact Gas Block
- CHARGING HANDLE: Airborne Charging Handle
- MUZZLE: Nanocoated Surefire Closed-Tine Warcomp
- LOWER PARTS KIT: Ultra Duty Lower Parts Kit
- BUFFER: Mil-Spec 6 Position, 7075-T6
- BUFFER ASSEMBLY: Super-42 w/ H2 Buffer
- STOCK: B5 Systems Enhanced Sopmod Stock
- GRIP: Geissele Rifle Grip

Geissele firearms feature a Type 3 harcoat anodized finished. This includes the color variants, such as DDC, ODG and 40mm Green. Due to the nature of hard anodizing, the color variants will illustrate different shades. The color will also highlight imperfections in aluminum, where black anodizing hides it. If purchasing a color variant, please expect some variation in the finish from part to part and the potential for minor cosmetic imperfections in the aluminum.
UPC#: 817953027233

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Comments (1)

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These are really sturdy rifles,subMOA accurate,
I’ve seen charts where their accuracy was at .9 with
77 grain bullets,they have real good triggers, BCG’s and charging handles.

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