Luth-AR AR-15/308 6-Position Mil-Spec Carbine Buffer Tube
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Luth-AR
Overview
The Luth-Ar LLC AR-15/308 6-Position Mil-Spec Carbine Buffer Tube is designed for use in carbine-length builds, providing a sturdy foundation for the stock assembly. This buffer tube features a Mil-Spec design, ensuring compatibility with a wide range of stocks and components, while the six-position adjustment allows for customizable length of pull to fit the shooter's preference. It's commonly found in AR-15 builds where versatility and adjustability are key considerations.
Specifications
Available Merchants(7)
Prices checked
Stock Alert
September 2026 on GunPartPicker
Luth-AR AR-15/308 6-Position Mil-Spec Carbine Buffer Tube ranked #38 of the 49 buffer tubes builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #30 of the 64 buffer tubes builders have added. Builds with this buffer tube are mostly chambered in 5.56 NATO (71%, then .308 Win 14%), split between carbine-length (50%) and mid-length (17%) gas systems, and mostly AR-15 (91%, then AR-10 9%).
It was in stock most days in September 2026, but today none of the 7 retailers we track has it in stock right now. It dipped to $23.57 at GritR Sports for a stretch in September 2026, under its usual $24.90 to $24.99, so sales do come around. Listed prices start at $21.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
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