Double Star Ar-15 Arfx Skeleton Stock Fixed Mil-Spec Blk
The Double Star AR-15 ARFX Skeleton Stock is a fixed mil-spec stock built for shooters who value lightweight handling and adaptability. Unlike heavier commercial stocks, this aluminum design trades bulk for speed—ideal for competition shooters, tactical riflers, and hunters who prioritize maneuverability without sacrificing stability. It mounts directly to your existing A-2 buffer tube, making it a straightforward upgrade if you already have the core components in place.
What sets the ARFX apart is its practical feature set. Three sling attachment points let you dial in the carry method that works for your discipline, whether that's a single-point, two-point, or no-sling setup. The closed-cell foam over-tube wraps the buffer tube in a soft cheek weld surface while insulating your face from felt recoil and weather. That foam is formulated to resist cleaning solvents, gun oils, UV damage, salt spray, and temperature swings—tough enough for field use and hard conditions. The machined 6061-T6 aluminum buttplate is drilled and tapped to accept the included rubber butt pad, giving you a durable interface with your shoulder.
At just 10.4 ounces and 10 inches long, this stock keeps your rifle nimble without asking you to compromise on control. The Type 3 mil-spec hard-anodized finish in matte black is durable and professional-looking. Keep in mind that installation requires an A-2 buffer tube, rifle buffer, and rifle buffer spring—standard AR-15 internals you likely already own or can source easily.
Key Features
- Three sling attachment points for flexible carry and shooting positions
- Lightweight 6061-T6 aircraft-grade aluminum construction
- Closed-cell foam over-tube for comfortable cheek weld and vibration dampening
- Foam resists solvents, oils, UV, salt spray, and extreme temperatures
- Type 3 mil-spec hard-anodized matte black finish
- Machined aluminum buttplate with included rubber pad
- Fixed configuration—no adjustability, maximum rigidity
Specifications
| Brand | Double Star |
| Model | AR-15 ARFX Skeleton Stock |
| Type | Fixed mil-spec stock |
| Material | 6061-T6 aluminum (heat-treated, aircraft grade) |
| Finish | Type 3 mil-spec hard-anodized matte black |
| Length | 10 inches (25.4 cm) |
| Weight | 10.4 oz (296 g) |
| Over-Tube | Closed-cell foam |
| Buttplate | Machined aluminum with drilled/tapped holes |
| Sling Points | Three attachment points |
| Compatibility | A-2 buffer tube |
| Included | Rubber butt pad |
Frequently Asked Questions
What buffer tube does the Double Star ARFX stock use?
This stock is designed to work with your existing A-2 fixed stock buffer tube. It slides over that tube, so you'll need the buffer tube, rifle buffer, and rifle buffer spring already installed in your AR-15 to complete the installation.
Is the Double Star ARFX skeleton stock adjustable?
No, this is a fixed stock. It does not adjust for length of pull. If you need adjustability, you'll want to explore collapsible or adjustable alternatives.
How many sling attachment points does it have?
The ARFX provides three sling attachment points, giving you flexibility in how you mount and carry your rifle—single-point, two-point, or traditional carry options are all supported.
What's included with this stock?
The stock comes with a rubber butt pad that installs into the drilled and tapped aluminum buttplate. The butt pad provides cushioning and grip at your shoulder.

