Diamondback Firearms 5.56 AR-15 Barrel - Mid-Length - Nitride - 16"

Manufactured by Diamondback Firearms
SKU: 556M16M50B8
MPN: 556M16M50B8
Manufactured by Diamondback Firearms
79 Reviews
$74.99 $99.99

In Stock

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Details

Details

This 16" barrel is manufactured in-house using state-of-the-art CNC machines and is thoroughly inspected at multiple stages of the build process to ensure quality. Precision machined from heavy duty 4150 Chrome Moly Vanadium Steel, this barrel features a 6 groove button rifled bore to ensure consistent accuracy, with a 1:8 twist rate optimal for a variety of bullet weights. The mid-length gas system is designed for reliable and smooth cycling.

This barrel is threaded 1/2x28 and features an 11 degree target crown. To provide an added layer of protection, the barrel is finished with a durable salt bath Nitride coating. Designed by Diamondback Barrels Co., this barrel also features M4 feed ramps and is compatible with a wide range of AR-15 parts. The medium contour/profile of the barrel provides a good balance of weight and heat dissipation.

Features:

  • 16" barrel chambered in 5.56 NATO
  • Machined from 4150 CMV steel
  • Salt Bath Nitride finish for added durability
  • Mid-length gas system for reliable cycling
  • 1:8 twist rate for optimal bullet stability
  • 6 groove button rifled bore for consistent accuracy
  • 11 degree target crown for enhanced precision
  • Threaded 1/2x28
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Specifications

Barrel CoatingSalt Bath Nitride
Barrel ContourMedium
Barrel Length16
Barrel Material4150 Chrome Moly Steel
BrandDiamondback Firearms
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthMid-Length
PlatformAR-15
Thread Pattern1/2 X 28
Twist Rate1:8
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

79 reviews

4.6

16 inch diamondback

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Very good barrel, no issues that I’ve found. Only thing that I would gripe about is that it is not dimpled for a gas block which is not the end of the world but it does help.

Ar parts

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Excellent service Excellent product. Fast dilivery.

" GREAT BARREL - GREAT PRICE "

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Excellent finish and machining and its dimpled for your gas block, what else could you ask for...

Budget Barrel

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I had read previous reviews about the gas ports being drilled off-center. My Son and I each bought 5 of these to build AR’s for our employees. Every one of them passed inspection and we are very pleased with the performance! Great budget barrel.

Great value

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Quality product at a great price. Customer service even lowered price after it went on sale the day after I ordered. Primary Arms is my go to supplier for all my builds.

Better than expected

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Had mixed reviews but was super on sale, so I took a chance.

Gas port is properly aligned

Finish was good after cleanup; comes dusty.

Muzzle threads weren’t perfect, but muzzle device went on with extra effort. Felt like I was grinding down burrs. But it came back off. And went back on.

Paired with a FosTech nitride BCG. Shot wonderfully.

90 total rounds of 55gr white box, 55gr Hornady vmax, and 62gr aguila ball. Ejected brass looked great.

Used super 42 spring and H buffer. Would not cycle the 62gr, until I switched to carbine spring and buffer.

Overall very pleased. Accuracy beat expectations.

Looks good....

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I haven't installed it yet, but it looks good. I've seen DB barrels with mis-aligned gas tube holes, this one looks correct. Nice nitride finish.

Challenging times

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Finally a place that makes an effort to get you something you ordered instead of using Covid as an excuse to not make an effort

No problems with any of the 3!

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Some reviewers are complaining of off center gas ports and burrs in the bore. I have no complaints out of the 3 I bought. They seem perfectly in spec. Great value for the money and I love the finish and profile of the barrel. Bores were a little dirty but cleaned right out with a brush, solvent, and a patch.

Good barrel for the price

by

Bought this barrel a few months ago when it was on sale. Fit and finish was good on the one I got. Gas port was off just a little, as others described. Not enough to affect gas block alignment or overall function (gas block can still be aligned correctly without being canted.) Only shot it for function test. I haven’t tried to zero it yet so can’t speak for accuracy.