AR-15 Barrels

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Barrel Length Caliber

Ballistic Advantage CHF Chrome 16" 5.56 1:7 Hanson Mid Gas Barrel

$272.85

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Ballistic Advantage Classic 16" 5.56 1:7 M4 Carbine Gas System Barrel

$145.18

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Ballistic Advantage Modern 16" 300 Blackout 1:7 DRP Barrel Nitride

$135.18

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Ballistic Advantage Modern 16" 5.56 1:7 Government Mid Gas System Barrel

$112.73

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Ballistic Advantage Modern 16" 5.56 1:7 HBAR Chrome Mid Gas System Barrel

$145.18

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Ballistic Advantage Modern 16" 5.56 1:7 HBAR Mid Gas System Barrel

$112.73

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Ballistic Advantage Modern 16" 5.56 1:7 M4 Carbine Gas System Barrel

$112.62

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Ballistic Advantage Modern 18" 5.56 1:7 SPR Rifle Gas System Barrel

$140.00

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Ballistic Advantage Performance 16" 5.56 1:7 Hanson Mid Gas Barrel (.625)

$186.30

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Ballistic Advantage Performance 16" 5.56 1:7 Hanson Mid Gas Barrel (.750)

$186.30

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Ballistic Advantage Premium 16" 223 Wylde 1:8 Hanson Barrel Nitride

$182.05

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Ballistic Advantage Premium 16" 223 Wylde 1:8 Hanson Barrel Stainless

$182.05

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Ballistic Advantage Premium 16" 223 Wylde 1:8 SPR Barrel QPQ

$157.63

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Ballistic Advantage Premium 16" 223 Wylde 1:8 SPR Barrel Stainless

$154.94

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Ballistic Advantage Premium 16" 223 Wylde 1:8 SPR Fluted Barrel

$187.88

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Ballistic Advantage Premium 16" 223 Wylde Tactical Ops Barrel QPQ

$155.18

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Ballistic Advantage Premium 16" 223 Wylde Tactical Ops Barrel Stainless

$155.18

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Ballistic Advantage Premium 18" 223 Wylde 1:8 SPR Fluted Barrel

$206.02

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Ballistic Advantage Premium 18" 223 Wylde 1:8 SPR OPS12 Barrel QPQ

$173.42

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Ballistic Advantage Premium 18" 223 Wylde 1:8 SPR OPS12 Barrel Stainless

$173.42

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Ballistic Advantage Premium 18" 6.5 Grendel 1:8 SPR Barrel Stainless

$209.66

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Desert Tactical Solutions has AR-15 Barrels in many different lengths, profiles, twist rates, gas systems and other options.

Barrel Length: Common barrel lengths for AR-15 carbines and rifles are 14.5", 16", 18", 20" and 24". AR-15 pistols or "Short Barrel Rifles" (SBR) usually have barrel lengths of 10.3", 10.5", 11.5", 12.5", 13.7" or 14.5". If you are building an AR-15 that is not a pistol or SBR you will need a barrel with an overall length of 16". The overall length includes the muzzle device but it must be permanently attached, meaning pinned and welded. If you have a 14.5" barrel you will need a muzzle device that is 1.5" or longer permanently attached to the barrel in order to be legal. Barrel length does not effect accuracy but it does effect the velocity of the bullet which will effect the range of the bullet and how much energy it can carry.

Barrel Twist: The Barrel Twist ratio is the number of revolutions for the bullet per barrel inches. A barrel that is a 1:9” twist means that the rifling will spin the bullet one revolution in 9 inches. A "slow" twist rate would be a 1:12 barrel and a "fast" twist rate would be 1:7. The rifling twist stabilizes the bullet in flight. In general a slower twist rates stabilize lighter bullets and faster twist rates stabilize heavier bullets. Without getting into the history on bullet twist rates in the AR-15; most barrels today come in 1:12, 1:9, 1:8 and 1:7 twist rates with 1:8 and 1:7 being the most common. The ideal twist rates and bullets are below:

Barrel Twist Ratio	Bullet Weight Range
1:12	30gr-55gr
1:9	45gr-70gr
1:8	50gr-80gr
1:7	55gr-85gr

The above is not a set in stone rule. You could have two 1:9 barrels and one of them will be able to stabilize a 70gr bullet and the other won't. The above is just a general safe range.

Gas System Length: The most common gas system lengths are Pistol, Carbine, Mid and Rifle length. There is a less common length called Intermediate which is between Mid and Rifle in length but it is much less common. There are also "Rifle+1" which is a rifle length plus one inch. Unless you have a very specific need, stick to a common gas system length as finding replacement gas tubes could be difficult for the lesser common gas lengths. In general it's best to go with the longest gas length you can for the barrel. All barrels under 14.5" will use a pistol length gas system. Barrels that are 14.5" and 16" can use either carbine or mid length, with mid length being preferred due to the softer recoil it will produce. Barrels 18" and longer will have rifle length gas systems.

Barrel Steel: Most barrels are going to be made out of either a Chrome Molybdenum Vanadium (CMV) alloy (usually 4140 or 4150) or Stainless Steel (usually 416R). The difference between 4140 and 4150 is the amount of carbon in the steel. More carbon makes the steel a bit tougher, able to withstand heat and provides a little more wear resistance. Mil-Spec barrels are made from 4150 CMV. Stainless Steel (416R) barrels tend to be more accurate than CMV barrels, but they will wear out faster than 4150 or 4140 CMV. Rifles made for precision shooting usually have a Stainless Steel barrel and other rifles and carbines will usually have a 4140 or 4150 CMV barrel.

Barrel Finish: Some barrels have an inside and outside finish such as Chrome lining on the inside with a Phosphate finish on the outside. Another common finish is Nitride/Melonite/QPQ (without getting deep into the specifics, all three are the same), and some Stainless Steel barrels do not have a finishing treatment so their finish is the actual steel itself. Chrome lining technically will make the barrel slightly less accurate than a Nitride or Stainless Steel barrel but Chrome stands up to the heat of full auto firing a bit better than Nitride does. Nitride is cheaper and makes the barrel more durable and able to last longer than a non Nitride treated barrel. Unless you have a full auto lower receiver and you do a LOT of full auto fire, Nitride will serve you very well with semi auto, even with rapid fire from time to time without the accuracy hit of chrome lining. The Nitride process does not negatively effect accuracy and it can be applied to 4140, 4150 or 416R Stainless Steel barrels..

AR-15 Barrels

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