Description
The ACE ARFX is the original skeleton stock, and it earned that reputation for good reason. It swaps out a chunky A2 or A1 stock for a slimmed-down aluminum build that shaves weight off the back end of your AR-15 while keeping the strength you want in a stock that sees regular use. You will spot the ARFX on rifles from builders across the industry, which tells you plenty about how well it holds up.
The stock body is durable aluminum with a closed-cell foam cheek pad up top and a half-inch rubber buttpad on the back. That combination gives you a solid cheek weld and takes some of the sting out of recoil, so longer sessions behind the rifle stay comfortable. The skeletonized profile keeps things light and gives your build that clean, modern look without adding bulk.
What the ARFX Skeleton Stock Brings to Your Build
This is a rifle-length setup that includes a 10-inch buffer tube ready to bolt onto your lower. It carries three sling positions built in, giving you a few ways to run a sling depending on how you like to carry and shoulder the rifle. The whole thing is precision crafted and finished in matte black to match just about any AR-15 you drop it on.
Setting Up the ACE ARFX the Right Way
One thing to know before you order: this listing covers the stock and buffer tube only. The rifle-length buffer and buffer spring are not included, so if you are building fresh you will want to grab those separately. If you already have a working rifle-length lower, you can pull your existing internals and reuse them. It is a straightforward upgrade for anyone looking to lighten up a heavier factory stock without sacrificing that classic rifle-length feel and cheek position.
Key Specifications
- Manufacturer: ACE (DoubleStar)
- Model: ARFX Skeleton Stock
- Manufacturer Part Number: A101B
- UPC: 841348101024
- Color / Finish: Matte Black
- Stock Style: Skeletonized
- Length Configuration: Rifle Length
- Buffer Tube Length: 10 inches
- Body Material: Aluminum
- Cheek Pad: Closed-cell foam
- Buttpad: 1/2 inch rubber
- Sling Positions: 3
- Platform: AR-15
- Stock Weight: Approx. 11.2 oz
- Country of Origin: U.S.A.
What’s Included
- ACE ARFX skeleton stock
- 10-inch aluminum buffer tube
Frequently Asked Questions
Does the ACE ARFX stock come with a buffer and buffer spring?
No. This listing includes the ARFX skeleton stock and the 10-inch buffer tube only. You will need to supply a rifle-length buffer and rifle buffer spring separately, or reuse the ones from your current rifle-length lower. ACE also offers a complete kit under a different part number if you want everything in one box.
What platform does the ARFX skeleton stock fit?
The ARFX is built for the AR-15 platform and is configured in a rifle length. Since it comes with its own buffer tube, it mounts to a standard AR-15 lower that is set up for a rifle-length receiver extension. It is a direct swap for a heavier A1 or A2 stock.
How does the ARFX compare to a standard A2 stock?
The ARFX is noticeably lighter than a standard A2 stock while still holding onto a high level of strength and durability. The skeletonized aluminum body trims the weight, and the closed-cell foam cheek pad and rubber buttpad make it more comfortable to shoulder than a solid A2. That is a big part of why you see it on so many factory and custom rifles.
How many sling attachment points does the ACE ARFX have?
The ARFX has three sling positions built into the stock. That gives you flexibility in how you route and run a sling depending on your carry preference and shooting style.





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