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Questions & Answers
What are the barrel nuts made of? What is the locking model of the barrel nuts?

Standard barrel nut is aluminum, but I opted for the titanium for about $50.00 more.

by Samalama, Verified Owner, October 4, 2021
What is the inside diameter of the rail

I know that a JP Enterprises .750 adjustable gas block fit under my A2 armament M LOK Aethon rail. But to be able to access the locking allen screw for the gas block, took some die grinding work, and a little touch up marker. JP Enterprises JPGS -5S is a fairly large gas block.

by Samalama, Verified Owner, October 4, 2021
Customer Reviews
Helpful Negative Review Misleading description by Vegas97, Verified Owner, October 23, 2020
The barrel nut is aluminum, not titanium. It is hard to find a low profile gas block that will fit under this and still be free floating. All the low profile ones I have tried still hit the hand guard at the gas tube connection.
4/7 found this helpful
Most Recent Reviews Incorrect length by Rick, Verified Owner, November 20, 2022
This rail is absolutely NOT 10” long. It’s more like 9.6” in length. It looks nice and is easy to install but I don’t know what’s up with companies falsely advertising their rail lengths, this is the third rail I’ve tried for my SBR and I’m just leav...
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Most Recent Reviews Owned for 10 years by AlphaClark, February 26, 2022
I've owned this rail since the day they were released. 2A has some of the best customer service and great products. They were one of the first manufacturers to introduce titanium parts. Haven't had any issues with any product I've purchased from them...
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Read All 3 Reviews

Product Discontinued by Manufacturer

2A Armament M-LOK Aethon Rail has been discontinued by 2A Armament and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the AR15 Accessories, Gun Parts, AR 15 Tactical Rails, AR 15 Parts, Rifle Parts, AR Handguards & Forends, AR15 Upper Parts yourself to try and find the perfect replacement for you!

Product Info for 2A Armament M-LOK Aethon Rail

The 2A Armament Aethon Rail M-LOK series provides an alternative aesthetically progressive design that is lightweight with our 7075-T6 Aluminum barrel nut and attach method. The innovative attachment of the rail and the barrel nut provides a solid lockup, a seamless, strong joint that requires no timed alignment to the barrel nut itself. All 2A Armament rails (and receivers for that matter) are designed with a pocketed picatinny rail to further minimize weight. With new styling and attention to detail the picatinny pockets taper at the end of both the upper receiver and the rail so that one can match the 2A rail to a third party upper if desired and still have a clean transition in the design. In addition, Aethon rails offer QD mounting at both ends of the handguard.image

Package Contents:

  • 2A Armament M-LOK Aethon Rail

Magazine and Accessories

120 / 20
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2A Armament M-LOK Aethon Rail Accessories

111 / 11
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Gunsmithing Tools & Accessories

114 / 14
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Gun Triggers

116 / 16
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Gun Parts and Accessories

130 / 30
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Gun Barrels

113 / 13
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Gun Sights

119 / 19
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Gun Stocks

117 / 17
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Mounts, Rings and Accessories

118 / 18
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Related Products to 2A Armament M-LOK Aethon Rail

2A Armament M-LOK Aethon Rail Unavailable & Discontinued Models

List of Unorderable Models

2A Armament M-LOK Aethon Rail, Barrel Nuts, 10in, Black, 2A-AERML-10 , MPN: 2A-AERML-10 , UPC: 854361006948 , Code: 2CU-HZ-AAMLAR-2A-AERML-10
2A Armament 7 M-LOK Aethon Rail, Black, 7, 2A-AERML-7 , MPN: 2A-AERML-7 , UPC: 854361006955 , Code: 2CU-HZ-AAMLAR-2A-AERML-7
DEMO, 2A Armament 15 M-LOK Aethon Rail, Black, 15, 2A-AERML-15 , MPN: 2A-AERML-15-DEMO , Code: 2CU-HZ-AAMLAR-2A-AERML-15-DEMO
2A Armament M-LOK Aethon Rail, Barrel Nuts, 12in, Black, 2A-AERML-12 , MPN: 2A-AERML-12 , UPC: 854361006931 , Code: 2CU-HZ-AAMLAR-2A-AERML-12
2A Armament 15 M-LOK Aethon Rail, Black, 15, 2A-AERML-15 , MPN: 2A-AERML-15 , UPC: 854361006924 , Code: 2CU-HZ-AAMLAR-2A-AERML-15
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