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CMC Triggers
Overview
The CMC Triggers Gas Tube is designed for carbine-length gas systems, making it an essential component for reliable gas operation in your AR-15 build. Constructed from carbon steel and finished with a nitride coating, this gas tube provides durability and corrosion resistance, ensuring consistent performance over time. This gas tube is commonly found in standard AR-15 builds that prioritize a traditional carbine setup.
CMC Triggers Gas Tube Carbine Length Nitride Black ranked #20 of the 63 gas tubes builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #17 of the 95 gas tubes builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 6 of the 8 retailers we track have it in stock. It dipped to $15.99 at Sportsmans Outdoor Superstore for a stretch in August 2026, under its usual $16.99 to $17.99, so sales do come around. Buying today, the lowest price is $17.09 at Optics Planet, above August's low of $15.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 30 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 →The part most often added in each category by the 20 builds that include this one
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Aero Precision AR-15 5.56 BCG W/C158 Bolt - Aero Logo - Phosphate
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Builds in the community that include the Cmc Triggers Gas Tube Carbine Length Nitride Black
| Build | Parts | Total |
|---|---|---|
 | 30 | $4534.42 |
 | 26 | $2048.76 |
 | 16 | $2281.86 |
 | 17 | $1713.91 |
 | 25 | $2100.28 |
 | 15 | $2518.50 |
 | 27 | $5295.42 |
2 global ratings
Top reviews
Running this CMC nitride gas tube in my primary AR with a carbine system. Its been totally reliable, no short stroking or anything weird. The black nitride finish looks great and seems super durable, much better than a phosphate. If you need a quality carbine gas tube without breaking the bank, this is a solid choice.
Got this CMC carbine gas tube for a new build. The nitride finish is definitely a plus for corrosion resistance compared to plain steel. It seated well into my gas block, no issues there. My only small gripe is its carbon steel – I usually lean towards stainless for gas tubes, but for a carbine length it should hold up fine. Good for a basic, reliable setup.
