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VLTOR
Overview
The Vltor Weapon Systems A5 Receiver Extension Tube is a Mil-Spec buffer tube designed specifically for A5 systems, providing a robust foundation for your build. This tube is engineered to work seamlessly with A5 buffers, which helps to optimize the recoil management and overall function of your AR-15. You will commonly find this buffer tube in builds utilizing a Mid-Length gas system chambered in 5.56 NATO, making it a solid choice for a balanced shooting experience.
VLTOR Weapon Systems A5 Receiver Extension Tube was the tenth most added buffer tube on GunPartPicker in August 2026, behind the CMMG AR-15 MK4 Receiver Extension KIT, with about 2% of all buffer tubes added to builds. Up from #16 in July. Builds with this buffer tube are mostly chambered in 5.56 NATO (80%, then 300 Blackout 20%), split between mid-length (40%) and pistol-length (20%) gas systems, and mostly AR-15 (88%, then AR-10 13%).
It was in stock most days in August 2026, but today 2 of the 5 retailers we track have it in stock. It dipped to $49.99 at Brownells for a stretch in August 2026, well under its usual $56.66, so sales do come around. Buying today, the lowest price is $56.66 at AT3 Tactical, above August's low of $49.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every buffer tube by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Tube Guide →The part most often added in each category by the 75 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Vltor Weapon Systems A5 Receiver Extension Tube
| Build | Parts | Total |
|---|---|---|
 | 27 | $6446.76 |
 | 19 | $1551.12 |
 | 16 | $3299.02 |
 | 24 | $2131.53 |
 | 26 | $3009.99 |
 | 22 | $1219.60 |
 | 27 | $5286.28 |
1 global rating
Top reviews
VLTOR A5 receiver extension tube has the profile I wanted for a smoother recoil impulse setup. A5 spec is slightly longer than carbine extensions which allows the longer A5 spring and buffer. Quality aluminum body. Solid premium tube.
