CMMG AR-15 Gas Tube Stainless Steel Mid-Length
Click to see full view
CMMG
Overview
The CMMG AR-15 Gas Tube is crafted from polished stainless steel, providing a reliable pathway for gas to travel from the gas block back to the action, essential for semi-automatic cycling. With a mid-length gas system, this gas tube helps to optimize the balance of recoil and reliability, making it suitable for various shooting applications. This gas tube is frequently used in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a common choice for builders aiming for performance and smoother operation.
Specifications
Available Merchants(8)
Prices checked
Price Alert
September 2026 on GunPartPicker
CMMG AR-15 Gas Tube Stainless Steel Mid-Length was the seventh most added gas tube on GunPartPicker in September 2026, behind the Spike's Tactical Spikes Tactical AR-15 Gas Tube Melonite Rifle, with about 3% of all gas tubes added to builds. Up from #12 in August. Builds with this gas tube are mostly chambered in 5.56 NATO (71%, then .223 Wylde 21%), nearly all on mid-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 7 of the 8 retailers we track have it in stock. It dipped to $16.99 at Classic Firearms for a stretch in September 2026, under its usual $17.63 to $18.08, so sales do come around. Buying today, the lowest price is $15.59 at Classic Firearms, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
Not sure which gas tube to pick?
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:
Frequently Built With
The part most often added in each category by the builds that include this one
FN AR-15 M16 Barrel 16 Mid-Length 5.56mm
Midwest Industries Combat Rail M-LOK AR-15 Handguard Black - 14"
PSA AR-15 "Stealth" Stripped Lower Receiver
Bravo Company M16 Bolt Carrier Group Black
KAK Industry Low Profile Gas Block .750 Steel Phosphate Finish Black
Geissele Automatics G2S Two Stage AR-15 Trigger .154"
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.
Builds Featuring This Part
See all 10 →Builds in the community that include the Cmmg Ar-15 Gas Tube Stainless Steel Mid-Length
| Build | Parts | Total |
|---|---|---|
 | 24 | $1317.78 |
 | 13 | $1302.66 |
 | 24 | $6491.38 |
 | 27 | $6967.18 |
 | 23 | $3522.46 |
 | 11 | $877.11 |
| 24 | $1075.59 |
 | 21 | $3088.42 |
 | 20 | $1812.83 |
 | 9 | $828.38 |
No reviews yet. Be the first to review this product!