Luth-AR AR-15 A2 Buttstock Extension Tube
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Luth-AR
Overview
The Luth-Ar LLC AR-15 A2 Buttstock Extension Tube is a rifle buffer tube designed specifically for use with A2-style stocks. As a tube-only assembly, it provides the necessary foundation for a stable and secure stock attachment, ensuring proper alignment and function within your build. This component is commonly found in builds that prioritize a fixed stock configuration, often favored for precision shooting or designated marksman setups.
Specifications
Available Merchants(6)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have been adding the Luth-AR AR-15 A2 Buttstock Extension Tube to their builds on GunPartPicker since May 2026. All time, it ranks #40 of the 64 buffer tubes builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 4 of the 6 retailers we track have it in stock. It dipped to $27.97 at BattleHawk Armory for a stretch in September 2026, under its usual $30.07 to $31.99, so sales do come around. Buying today, the lowest price is $30.07 at KY Gun Company, above September's low of $27.97, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Lower Receiver Forged
Luth-AR AR-15 Modular Stock Assy Fixed Rifle Length Black
JP Enterprises Standard Buffer Gen 2 Silent Captured Spring
B5 Systems Trigger Guard ATG-001-01
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
HEXMAG Rubber AR-15 Tactical Pistol Grip, Black - HX-HTG-Black
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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