Magpul MAG470-FDE STR Carbine Stock - Flat Dark Earth, Synthetic, Mil-Spec for AR-15/M16/M4 (Tube Not Included)
- Firearm Group:
- AR Platform
- Finish-Color:
- Black
- Material:
- Polymer
- Positions:
- 6
- Length of Pull:
- 10.90"-14.20"
- Tube Included:
- No
- Adjustment Type:
- Collapsible
- Features:
- Water Resistant Battery Storage Tubes
The Magpul MAG470-FDE STR Carbine Stock is a mil-spec drop-in replacement buttstock built for AR-15, M16, and M4 platforms that demand reliability and functionality without compromise. Unlike basic fixed stocks, the STR combines smart storage features with a reinforced polymer design that keeps your rifle running stable and accurate in the field, on the range, or in a patrol rig. The Flat Dark Earth finish fits seamlessly into most modern tactical setups.
What sets the STR apart is its practical balance of features. Two water-resistant battery tubes integrated into the left and right sides give you secure storage for backup power or small essentials without adding a separate pouch. A shielded release lever prevents snags and accidental collapsing during rough handling, while a supplemental friction lock system kills the wobble that degrades accuracy—especially critical if you're running an optic or training for precision work. The sloping cheek weld sits comfortable against your face even with a hat or helmet, and the design stays compact so you're not fighting bulk in tight spaces.
Build quality reflects Magpul's reputation: made in the U.S.A. from reinforced synthetic material that handles temperature swings and hard use. The replaceable 0.30" rubber butt-pad grips your shoulder positively and won't slip even when you're wearing body armor or plate carriers loaded with gear. You'll also find two integral sling loops and a reversible quick-detach sling mount, so you can configure carry however your mission demands.
Note: This is the stock only. You'll need a mil-spec receiver extension tube to complete the install—confirm your AR already has the correct tube before ordering.
Key Features
- Mil-spec compatible drop-in design for AR-15, M16, and M4 carbines
- Two integrated water-resistant battery storage tubes on each side
- Shielded release lever prevents snagging and accidental deployment
- Supplemental friction lock minimizes stock wobble and improves accuracy
- Sloping cheek weld combines slim profile with comfortable contact
- Integral sling loops and reversible quick-detach sling mount
- Replaceable 0.30" rubber butt-pad for shoulder grip and comfort
- Reinforced synthetic construction, made in the U.S.A.
Specifications
| Brand | Magpul |
| Model | MAG470-FDE |
| Product Type | Carbine Buttstock |
| Color | Flat Dark Earth (FDE) |
| Material | Reinforced Synthetic Polymer |
| Compatibility | AR-15, M16, M4 with mil-spec receiver extension tube |
| Storage Tubes | Two water-resistant battery tubes |
| Butt-Pad | Replaceable rubber, 0.30" thick |
| Sling Mounts | Two integral loops, one reversible QD mount |
| Made In | U.S.A. |
Frequently Asked Questions
What tube do I need for the Magpul STR stock?
The STR is designed for mil-spec sized receiver extension tubes. This product includes the stock only—you'll need to source a mil-spec tube separately if your rifle doesn't already have one installed. Check your upper receiver before ordering to confirm compatibility.
Can I use the STR stock for storage?
Yes. The STR features two integrated water-resistant battery tubes built into the left and right sides of the stock. These compartments are ideal for storing batteries, small tools, or other essentials without adding external pouches.
Will this stock work with body armor or tactical gear?
Absolutely. The STR was designed with gear in mind. The replaceable 0.30" rubber butt-pad provides positive shoulder purchase and won't slip even when you're wearing body armor, plate carriers, or bulky modular clothing. The sloping cheek weld also works well with helmets and hats.
What makes the STR different from a basic fixed stock?
The STR improves on standard designs with a supplemental friction lock that eliminates wobble for better accuracy, a shielded release lever that prevents accidental or snagged deployment, and practical storage tubes. The sloping cheek weld is also more ergonomic than traditional designs, especially when running optics or magnified sights.

