Blackout Defense AR-15 Performance Series barrels are guaranteed capable of shooting 1 MOA or better in optimal conditions using match-grade ammunition and other quality components.
These excellent button-rifled barrels start with premium 416-R stainless steel bars that are gun-drilled and reamed at standard production speeds in 5R rifling and 1:8 twist. The blanks are then fully stress relieved and precision air gauged before profiling, threading, and chambering begins.
Profiling and threading are completed on an ultra-precision 5-axis mill turn machine. The profile design includes three thermal expansion rings to limit distortion of the barrel during heavy use, as well as an extended gas block journal to accommodate enhanced gas blocks. The muzzle thread is machined to ½ – 28 with an 11-degree crown. The barrels are then chambered in .223 Wylde and individually inspected with a dummy round in addition to precision go and no-go gauges to ensure an accurate headspace. Finally, the barrels are hand deburred and polished to a consistent finish and salt bath nitrided for enhanced durability and corrosion resistance. The barrel extensions are separately nitrided, cleaned, and then installed to ensure a perfect torque.
The dwell time and gas port diameter for our midlength gas system barrels is as follows:
- 13.9″ Mid: 0.100 ms dwell time | 0.081” gas port diameter
- 14.5″ Mid: 0.139 ms dwell time | 0.081” gas port diameter
- 16.0″ Mid: 0.181 ms dwell time | 0.081” gas port diameter
The dwell time and gas port diameter for our carbine gas system barrels is as follows:
- 11.5″ Car: 0.120 ms dwell time | 0.081” gas port diameter
- 12.5″ Car: 0.150 ms dwell time | 0.073” gas port diameter
- 13.9″ Car: 0.159 ms dwell time | 0.073” gas port diameter
- Button Rifled
- M4 Feed Ramps
- 11º Target Crown
Question
Bryant –
What is the life expectancy for your 416-r stainless steel barrels? How many rounds can i put through it before i need to replace it?
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Blackout Defense –
416R barrel life expectancy is greatly influenced by the amount of heat and abrasion that the operator choses to expose to the barrel. For example, rapid fire, 5.56 NATO ammunition, and bi-metal cased bullets such as Tula and Wolf will all tend to degrade life expectancy – because rapid fire generates more heat than slow fire, 5.56 NATO ammunition burns hotter and at higher pressure than .223 Remington, and bi-metal cased bullets are more abrasive than copper full-metal jacket rounds. Our barrels will have a comparable life expectancy to other premium 416R barrels when put to comparable use.
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Question
Kenyatta –
Do you offer any other caliber barrels
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Blackout Defense –
Currently we are only chambering our barrels in .223 Wylde, which is a hybrid chamber that is rated for both .223 and 5.56 ammunition. We are not currently machining any other chambers, though we are working on a .300BLK offering in the future.
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Question
Justin Gumo –
Any chance for pistol length 300 blk barrel in the future?
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Blackout Defense –
Yes. We welcome you to follow our Instagram, where we post about new products in development. We recently received in several SB-Tactical braces for testing pistol configurations.
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Question
A. Ignacio –
Are there future plans for a 16″ DTL barrel?
Plans for a 300 BLK DTL complete Rifle setup?
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Blackout Defense –
Yes to both.
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Question
Mike –
Is there future plans for a 11.5 DTL barrel?
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Blackout Defense –
Yes, it is on our list.
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Question
Kimon –
Are the barrels cold Hammer forged ? What is the expected lifetime of an 11.5 inch barrel ? I live in Austria where your products are extremely rare but I want to get the best and most reliable barrel for my Ar Carbine. Greetings from the Austrian alps !
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Blackout Defense –
Our barrels are salt bath nitrided 416R stainless steel. 416R barrel life expectancy is greatly influenced by the amount of heat and abrasion that the operator choses to expose to the barrel. For example, rapid fire, 5.56 NATO ammunition, and bi-metal cased bullets such as Tula and Wolf will all tend to degrade life expectancy – because rapid fire generates more heat than slow fire, 5.56 NATO ammunition burns hotter and at higher pressure than .223 Remington, and bi-metal cased bullets are more abrasive than copper full-metal jacket rounds. Our barrels will have a comparable life expectancy to other premium 416R barrels when put to comparable use.
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Question
Tonee Purnell –
Hello. When will your duel tapered lock system become available, what is it made out of and will it be in 300 blackout?? Thank you an thank you for your timely response
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Mike Rennecker –
Any plans for 300 blackout ? Any plans for AR pistols ? Pretty please..
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Blackout Defense –
Based on customer feedback, we do have future plans to expand our line of calibers.
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Kevin Wood –
When could I get one ?
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Blackout Defense –
The dual taper lock barrel mounting system initially will be available with our 416R stainless steel barrels, in .223 Wylde chambering.
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Question
William –
Will the 11.5” mid length barrel cycle unsuppressed with a low mass bolt carrier, standard 3oz buffer, and standard/reduced power buffer spring, shooting .223 Remington factory ammo?
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Blackout Defense –
Under the conditions you mention, and with ammunition 65 grain or heavier, your rifle will cycle reliably with our 11.5″ midlength barrel.
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Ryan –
Can A2 fsb’s be pinned to the 13.9 carbine barrels?
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Blackout Defense –
No, it is not compatible.
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geoff –
What is the size of the gas port on the 11.5 MID length gas system?
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Will –
Are the barrels dimpled for the gas block?
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Blackout Defense –
This is a custom service that we provide. Please call us at 480-781-0573 if you are interested in a dimpled barrel.
Updated 2/5/22: When our barrels are back in stock, we anticipate that the dimple for the gas block will be a standard feature without additional charge.
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William Jewell –
What is the recommended buffer set up for the 11.5″ Mid-length barrel? Will a VLTOR A5 buffer system work with unsuppressed fire? (As long as the BCG and gas block/tube are effective as well).
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Blackout Defense –
Because of the shorter dwell times on shorter barrels, we highly recommend that our midlength barrels less than 13.9″ run suppressed. If running unsuppressed, however, we recommend ammunition 65 grain or heavier and the lightest possible spring, buffer, and bolt carrier setup. Heavier ammunition is slower, and thereby increases the dwell time. A lighter setup, because it has less mass, will cycle more quickly, thereby increasing the likelihood that the firearm will cycle before the dwell time expires.
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J coffey –
Lov the way you guys machine the parts
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Blackout Defense –
Thank you, we appreciate your business.
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