1. Home
  2. AR-15
  3. Barrels
  4. 556M16M50B8

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
$99.99

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details

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
See More

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

Excellent product, great price, outstanding customer service

by -

Ordered as part of a build for a client. Speedy delivery excellent product at a great price.

DIAMONDBACK FIREARMS

by -

Excellent low cost barrel for a build. I have used several of these with no issues.

Great barrel

by -

Awesome

Great barrel for budget build!

by

I was looking for a budget barrel for a truck gun. This price point hit the sweet spot. I opted for the adjustable gas block & the discounted gas tube & free float hand guard along with the standard A2 type flash hider. Good move on my part. Everything went together easily & shot very well. Grouping is about what I expected at 100yds ruffly an 1.5" which over open sights is all my old eyes can see anyway. I liked this set-up so well I bought another like it less the hand guard. I discovered I had one on my AR parts shelve I'd forgotten about. Thanks for a good buy at a fair price point!

Great Barrel - Great Price

by -

Have run about 100 rounds through this barrel and so far so good, barrel shoots straight and true and performs as well as any other more expensive barrel you might find.

Black Diamond barrels AR15

by -

Great price ,excellent accuracy for my needs ,everything was in spec,including gas port,finish was top notch also,would definitely buy another.

An excellent barrel!

by -

I own four of these barrels and all of them produce 1/2 groups at a 100 yards. I will definitely buy more. They are not dimpled so use gas alignment pins to line up the holes.

Great barrel

by -

Put together a budget build, went with the diamondback barrel and glad I did, broke in this barrel with steel and brass case, shot two three shot 1/2 groups at 100 yards with 55 grain .223 monarch brass, very happy

Great Barrel for a budget build

by -

Yeah maybe the gas tube hole is off slightly, but it does not effect anything. BCG still aligns perfectly with the gas tube inside the receiver. Also, so what it is not dimpled, many high end barrels are not either. Feed ramps are fine, head space is great with the BCG I am using.

Happy with the barrel, cannot go wrong with the price for a nice plinking AR!

I would and will but again!

Looks good

by -

Despite the bad reviews I took chance and ordered it. Upon receipt, the gas port appears to be aligned properly, using my naked eye. Finish is good. Few burrs in barel few rounds take care of that. have t shot it yet but initial impressions are good.