18" 5.56mm, Mid-length, 1:7, S2W®

In stock
SKU
18"_Mid-Length_S2W_Barrel
Starting at: $338.00

Details

Our 18” 5.56 barrel is the most accurate and longest lasting barrel attainable for your AR-15 build.  We Cold Hammer Forge our barrels, a process that sets us apart from other barrel manufacturers.  The 18” Shrength to Weight (Daniel’s Heavy Barrel) profile barrel is forged from 4150 Chrome Moly Vanadium steel, Mil-spec heavy phosphate coated and chrome lined with Mid-length gas system.

Stripped Barrel  2.65lbs 
Barrel w/ LPG 2.73lbs 
 

Specifications

More Information
Caliber5.56mm NATO
Barrel Length18"
Manuf. ProcessCold Hammer Forged
Twist Rate1:7
Muzzle Thread1 ⁄ 2 × 28 TPI (Threads Per Inch)
MaterialChrome Moly Vanadium
Outside FinishMil-Spec Heavy Phosphate
Inside FinishChrome
Gas SystemMid-length
Diameter At Gas Port.750″
Barrel ExtensionA4
Barrel ProfileS2W® (Daniel Defense's proprietary Heavy Barrel)
Weight2.65lbs
ManufacturerDaniel Defense
Daniel Defense Satisfaction Guarantee
Guaranteed Satisfaction

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer's products.

Customer Reviews
Rating:
97% of 100

Items 1 to 10 of 11 total

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  1. Was not expecting to love it this much
    Overall
    100%
    Put it in a build i made, everything from accuracy to recoil was significantly improved. I honestly can't find any complaints. My all time favorite rifle now

    Review by

    Posted on

  2. Best Barrel for DMR
    Overall
    100%
    Used this barrel to build a precision rifle. Accuracy is top notch with heavy match grade pills. It does exactly what it's supposed to do. You get what you pay for.

    Review by

    Posted on

  3. Tackdriver with a minimal weight penalty.
    Price
    100%
    Value
    100%
    Quality
    100%
    This barrel is a tack driver. I’m running one cut to 14.5 with a pinned brake. Obviously not the lightest option out there but it’s simply a fantastically robust and stable platform and extremely accurate.

    Review by

    Posted on

  4. Outstanding
    Quality
    100%
    Price
    100%
    Value
    100%
    Have this on my hunting/dmr rifle. Shoots exceptionally well with any ammo I run.(55-77gr)
    Doesn't make for the lightest rifle but that is not what it was designed for.

    Review by

    Posted on

  5. Accuracy reigns supreme!
    Quality
    100%
    Price
    100%
    Value
    100%
    Used this outstanding barrel on my scratch-built M4. Paired it with an Adam Arms piston. The result is my M4 easily shoots sub-MOA ... a real tack driver!

    Review by

    Posted on

  6. Pure Awesomeness !
    Quality
    100%
    Price
    100%
    Value
    100%
    I did a SPR type build using the 18” S2W barrel. I couldn’t be happier! Great barrel, super accurate!

    Review by

    Posted on

  7. DD 18" S2W
    Quality
    100%
    Price
    100%
    Value
    100%
    Used this barrel on a custom build and couldn't be happier with it. The accuracy at 100yds was sub-moa and the fit and finish is outstanding. I would consider this a bull barrel as it is a little on the heavy side but not a big deal. I built the rest of my rifle on the light side to make up for this. Overall this barrel is well worth it DD delivered another solid product I will continue to buy from them.

    Review by

    Posted on

  8. Great accurate barrel
    Price
    100%
    Value
    100%
    Quality
    100%
    I have this on my custom built dmr/hunting rifle. It is an outstanding barrel.

    Review by

    Posted on

  9. Awesome accuracy
    Price
    60%
    Value
    80%
    Quality
    100%
    I put this barrel on my first build because i knew of Daniel Defense quality and wanted an 18" mid length gun. Though it is a little heavy it shoots exceptionally well with any ammo. Weight, well in my eyes an 18" gun is an AR built for a little more Distance and not close quarters. So, I went generally light with everything else and its an awesome build. I tried the Daniel Defense stock, grip, for-grip package as well which i like as well.

    Review by

    Posted on

  10. DD 18" S2W
    Price
    100%
    Value
    100%
    Quality
    100%
    Bought this barrel and used your 15" Slim rail and clamp style low profile gas block on a BCM upper receiver and Spike's Lower using your Lower receiver parts kit and Tornado Furniture. Your team is producing some quality stuff...

    Review by

    Posted on

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