Spike's Tactical 16" 5.56 NATO Optimal Contour 1:7 Mid-Length Barrel - Phosphate

SKU: SB51606-ML
MPN: SB51606-ML
Manufactured by Spike's Tactical
20 Reviews

$260.10

Out of Stock

NOTE: Limit 2 per household. Quantities exceeding 2 will not allow checkout.

$260.10

Out of Stock

Details

These amazing cold hammer forged barrels are extremely durable with a 20,000+ round service life. This Spike's Optimum profile, 16" barrel weighs 26.4 oz with M4 barrel extension and no front sight base. It has a .750" gas block seat with a properly sized gas port and the muzzle is threaded perfectly concentric to the bore with 1/2x28 threads. This barrel features a mid-length gas system for smoother cycling and does not have the M4/M203 mount notch cut between the threads and the gas block area.

These barrels are made to military specifications for the M249 SAW. The cold hammer forging process work-hardens the steel around a rifled mandrel, which creates the lands and grooves. These barrels are chambered in 5.56 NATO, with a 1:7 twist rate. The barrel blanks are the correct certified CMV material and they are also hard chrome lined to the M249 SAW MIL-SPEC, which is almost twice as thick as the hard chrome on a MIL-SPEC M4. The result is a rifle that can be run hard day after day! Each barrel is high pressure tested and magnetic particle inspected. They have M4 barrel extensions, phosphate finish on the outside (under the front sight base as well).

Specifications

Barrel CoatingManganese Phosphate
Barrel ContourOptimum
Barrel Length16
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandSpike's Tactical
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthMid-Length
Manufacturer.Spike's Tactical
PlatformAR-15
Thread Pattern1/2 X 28
Twist Rate1:7
Weight26.4 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

20 reviews

4.8

Heavy duty and accurate

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I bought this barrel for a lightweight rough service build because it's cold hammer forged and extra thick chrome lined. It runs great as expected but the accuracy was a surprise. While it's not as accurate as a match type barrel when shooting cheap ammo, it shoots sub 1/2 moa with my 75 grain Hornady accuracy loads.

Great purchase

by -

Purchased this barrel for a custom rifle I use as a police officer. The accuracy is outstanding. Have not had a chance to shoot anything heavier than 55 grain because that is what I am issued. I will write another review if I am not happy with the performance of a heavier grain bullet.

A+

by -

By far one of the best barrels out there! Finish was spectacular, paired it with a dynacomp shorty extreme and installed onto spikes Gen II billet receiver, it was a little tight to insert. Sightly greased, heated the threads of the upper with a heat gun and gave it some taps with a rubber mallet.
<br>This thing is incredibly accurate! Can’t believe people don’t put spikes in top tier with BCM Noveske etc...

Love this Barrel

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I built my AR15 last year and used this barrel. The barrel is very well built and I get very accurate results. I wouldn't hesitate to buy another one on a future build.

Didn't work for me

by

Had to return mine the area where the gas port goes was to big. It says it fits a .750 low profile gas block the Midwest Industries low profile gas block did not fit. It was to tight for the barrel. Decided to go with the Spikes SS 18" .223 Wylde barrel instead.

Spikes barrels are #1.

by

This is the second spikes barrel i have used. They are top the line. Not a match barrel but both can shoot inch at a hundred yards. CHF barrel made by FN Armory same barrel maker our military barrels come from.

Spikes barrels are #1.

by

This is the second spikes barrel i have used. They are top the line. Not a match barrel but both can shoot inch at a hundred yards. CHF barrel made by FN Armory same barrel maker our military barrels come from.

Fit and finish

by

Quality quality quality. Only thing that could make it better would be a melonited or cerakoted outter coating. Great barrel I expect to have for many years.

spikes

by

Shoots great. perfect for my spikes build. Amazing fast shipping from PA

You know its nice

by

What a great barrel. I never had chrome lined or CHF before. Make sure you break this one in correctly and you should have a great barrel for a long time. This is money well spent

Great packaging, Quick shipping,great website

by

Will do business again!!! Thanks!!

spikes tactical barrel

by

I haven't installed in yet, but it was packed well and shipped fast.

Accurate and Reliable

by

I wanted a barrel that could handle any and everything I threw at it. This one does just that. Really shines with heavier grain rounds but still does great with cheap steel cased Russian stuff too. I am very satisfied with this one and highly recommend it for a build or for replacement of standard milspec barrel. I really enjoy dealing with Primary Arms. Fast shipping and quality parts

Very accurate

by

Great looking, very light, accurate barrel! Just as accurate as any HBar I've seen

Amazing

by

I could not be happier with this barrel and all the other purchases I've ordered from Primary arms. I always receive my items extremely fast with excellent customer service.

Love this Barrel!

by

This is the barrel I wanted and had to search for a good price. Primary arms shipped this item fast and was well protected. I will be installing this barrel on my AR soon.

Great Barrel

by

Primary Arms processed the order fast. It was shipped 4hrs after placing the order. I even called them to add an item to the order last minute. The package was packed very nice with a truck load of bubble wrap. Fit and Finish are top notch and a good weight. I am planning on head spacing and test firing soon. (Update) The barrel head spaced with no issues with my BCM BCG.

Outstanding barrel

by

This CHF barrel is a high quality and the barrel contour is not so heavy that it weighs you down

ST barrel

by

Barrel looks great the finish is awesome and fit in my Upper, haven't fire it yet but it looks kickass!

ST barrel

by

Barrel looks great the finish is awesome and fit in my Upper, haven't fire it yet but it looks kickass!