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WMD Guns
Overview
The WMD Nitromet Gas Tube is a mid-length gas tube designed for AR-15 builds, featuring a durable nitride finish that enhances its corrosion resistance. Constructed from carbon steel, this gas tube effectively channels gases from the barrel to the bolt carrier group, ensuring reliable cycling in your firearm. It's commonly found in mid-length gas system builds, particularly those chambered in 5.56 NATO, making it a solid choice for a variety of setups.
Builders on GunPartPicker first added the WMD Nitromet Gas Tube - Mid-Length - AR-15 to a build in September 2026.
It was in stock most days in August 2026, and today only Palmetto State Armory has it in stock. It dipped to $14.99 at Palmetto State Armory for a stretch in August 2026, under its usual $16.65, so sales do come around. Buying today, the lowest price is $14.99 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every gas tube by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Gas Tube Guide →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Wmd Nitromet Gas Tube - Mid-Length - Ar-15
| Build | Parts | Total |
|---|---|---|
![]() | 22 | $1415.78 |
![]() | 20 | $753.78 |
![]() | 20 | $987.06 |
![]() | 16 | $806.18 |
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