16″ Melonite Lightweight 5R Barrel – Wylde Chamber 4150CMV

4.80 out of 5 based on 5 customer ratings
(5 customer reviews)


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SKU: 16-4150LW. Category: .

Product Description

This is our 16 inch Mid Length Gas, light contoured barrel that is Melonite/Nitride treated. Melonite has shown to last 30% longer than Chrome. Please see our FAQ section for more info on this. This barrel has a Wylde chamber which is more accurate, but can still shoot .223 or 5.56 ammo. Barrel extension is re-torqued to the barrel after treating, due to different expansion/contraction rates. This is the proper way to treat a barrel. Barrel is milspec 4150 steel, has M4 ramps and is threaded 1/2×28. Gas block is .750. Weight is 1lb 8oz and has 1:8 twist rate with 5R rifling. Comes with gas port drilled and gas block dimpled at the bottom for easy gas block alignment.

  • 16″ Mid-Length Gas
  • 1lb 8oz
  • Mil-Spec (B-11595E) 4150 Steel
  • Melonite (QPQ) Treated
  • Wylde Chamber (.223 or 5.56)
  • M4/Extended Feed Ramps
  • .750 Gas Block Area (dimpled for easy gas block install)
  • 1/8×28 Thread Pitch
  • 1-8 Twist Rate
  • 5R Right Hand Rifling

5 reviews for 16″ Melonite Lightweight 5R Barrel – Wylde Chamber 4150CMV

    5 out of 5

    (verified owner):

    1.5-2.5 MOA multiple 5 shot groups with super cheap herters steel cased ammo. My DD 16″ hbar does the same group sizes for comparison. My standard AR does the groups 2.5-4″ with same ammo. I’m not sure if the 5R rifling is to account for this, but I am very pleased nonetheless. I am not looking for super tight groups as this is after all a lightweight barrel going on a rifle with just a red dot and iron sights.
    Cycles steelcased fine with stock gi weight buffer. Much more accurate than anticipated. Have yet to custom load some ammo for this but I am pleased.
    I just wish there was a 14″ option to save some weight for my lightweight rig.
    After some reseach, this appears to be the exact same barrel offered on another site for less $$$.

    Justin was great and helps run a great shop here.

    5 out of 5

    (verified owner):

    Bought this a while back but didn’t finish the build until recently. Took it plinking a couple of times and it did great. Finally took it out to really test it out today and it started raining! In spite of shooting a constant drizzle, I was able to shoot several 3-shot groups at 75 yards from prone, with a bipod that were under 1/2″! I was shocked. I bought this barrel for a lightweight build and expected 1-2 MOA. Apparently it will do better than that! I also consistently hit clay pigeons at close to 300 yards. Considering that I was using a 3.5x ACOG, I’m truly impressed! (This was with Black Hills 77gr match ammo).

    5 out of 5

    (verified owner):

    charles-sept 21st 2014. searched many sites looking for this barrel. the fit and finish is excellent. if you are looking for a high quality barrel at a fair price this is it. came carefully packaged and shipping was super fast. would not even think of buying a barrel anywhere else !!

    4 out of 5

    (verified owner):

    Fast shipping. Great fit. Still in the assembly process. Will let you know how it turns out once I get it to the range. I honestly cant visually detect the difference between this 5R barrel vs other barrels I have owned. Hearing it described as similar to the Glock design, and holding my Glock barrel for comparison I cant see the similarities in the rifling. To be candid, I am no expert on AR barrels so lets get that right out in the open. Im likely missing something, and the barrel is likely fantastic. The finish is outstanding. Very happy to see someone putting out this hard to find combination: 5R, Wylde, Melonite. Good luck finding it anywhere else. And LIGHTWEIGHT.

    Customer service was excellent and very helpful. Once I finish the build and take it out to the range a few times I will come back and give it that 5th star. So far so good.

    5 out of 5


    I really like this barrel. It is not particular which ammo gives the best accuracy because it has shot tight groups with every kind of factiry ammo or reloads I have run throgh it. It is one hell of a fine barrel!

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