The Luth-AR BS-09 A2 Rifle Buttstock Extension Tube is the ultimate solution for shooters who demand a more ergonomic cheek weld, improved stability, and a sleek tactical look on their .223 or .308 caliber rifles. Engineered from high‑impact, aerospace‑grade polymer, this extension tube offers the perfect blend of durability, weight savings, and corrosion resistance—ideal for both competition and field use.
Key Benefits
- Enhanced Cheek Weld: Extends the A2 stock to provide a deeper, more comfortable cheek rest for consistent eye‑to‑scope alignment.
- Universal Compatibility: Fits all standard A2 buffer tubes on AR‑15, AR‑10, and compatible platforms calibrated for .223 or .308 cartridges.
- Lightweight Construction: Advanced polymer reduces overall rifle weight while maintaining structural integrity under recoil.
- Low‑Profile Aesthetic: Matte black finish blends seamlessly with tactical accessories and reduces glare.
- Easy Installation: Threaded interface matches stock OEM specifications—no modifications required.
- Corrosion‑Resistant: UV‑stabilized material prevents discoloration and cracking from harsh environments.
Technical Specifications
| Model | BS-09 |
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| UPC | 859819007119 |
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| Compatible Calibers | .223 Remington, .308 Winchester |
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| Fitment | A2 buffer tube (standard 1‑inch diameter) |
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| Length | 0.5" (12.7 mm) extension |
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| Material | Aerospace‑grade polymer with reinforced fiber matrix |
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| Finish | Matte Black, non‑reflective |
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| Weight | 0.07 lb (32 g) |
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| Country of Origin | United States |
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Why Choose Luth-AR?
Luth-AR is a trusted name among tactical shooters, law‑enforcement professionals, and precision competitors. Each product undergoes rigorous testing for tolerance, fit, and durability. The BS‑09 extension tube reflects Luth‑AR’s commitment to delivering reliable, high‑performance accessories that enhance the shooter’s experience without compromising the rifle’s balance.
Installation Guide
- Ensure the rifle is unloaded and the safety is engaged.
- Remove the existing A2 buffer tube by loosening the two set‑screw points.
- Slide the Luth‑AR BS‑09 extension tube onto the buffer tube threads.
- Re‑install the buffer tube and tighten the set‑screws to the manufacturer’s torque specifications (approximately 15–20 in‑lb).
- Re‑attach the buttstock and verify proper alignment and cheek weld comfort.
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Customer Reviews (Sample)
“The BS‑09 gave me the perfect cheek weld for my 20‑in‑long‑range setup. It’s solid, light, and the matte black finish looks great with my suppressor.” – Mike D., Competitive Shooter
“Installation was a breeze, and the extension didn’t affect my rifle’s balance. Highly recommend for anyone looking to upgrade their A2 stock.” – Sarah L., Law Enforcement Officer
