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The gas tube is one of those small parts that quietly does a big job, and Lantac's mid-length version is built to handle it without complaint. It's machined from stainless steel extruded tube and then treated with a black nitride finish, which bumps up resistance to corrosion, heat, and erosion compared to a standard untreated tube. On a direct impingement AR-15, this little tube carries hot gas from the gas block back to the bolt carrier group, so having one that shrugs off heat and stays dimensionally consistent matters more than its size suggests.
Mid-length gas systems have become one of the most popular setups in the AR world, and for good reason. This length pairs up with barrels in the 14 to 20 inch range, with 16 inch builds being the classic match. The longer dwell time compared to a carbine system means a softer, smoother recoil impulse and a little less wear on your internals. If you're putting together a general-purpose rifle or a range gun and want it to shoot pleasant all day, mid-length is a solid choice.
That black nitride treatment isn't just for looks. Nitrided surfaces tend to run cooler and cleaner, so carbon buildup wipes off easier and the part holds up better over long strings of fire. The dark finish also cuts down on light reflection through the handguard, which is a nice touch if you're running a slotted or ventilated rail. Every tube is laser engraved and proudly made in the USA, which is what you'd expect from Lantac's reputation for tight, quality machining.
The tube ships complete with its gas tube roll pin, so once you've got your punch set and a low-profile gas block ready, installation is a straightforward job. It's a clean upgrade or replacement part for any mid-length AR-15 build.
Mid-length gas systems are built for barrels in the 14 to 20 inch range, with 16 inch barrels being the most common pairing. If your barrel is drilled for a mid-length gas port, this is the tube you want. When in doubt, measure your existing tube or check your barrel's spec sheet before ordering.
Yes, it ships complete with the gas tube roll pin, so you have the hardware needed to secure it to your gas block. You'll still want a proper punch set and a hammer on hand for the install. The pin holds the tube in place inside the gas block once seated.
The nitride treatment adds meaningful corrosion, heat, and erosion resistance over a plain untreated tube. It also helps the tube run cooler and cleaner, so carbon comes off easier during cleaning. As a bonus, the black finish cuts down on light reflection through a vented handguard.
It's built to standard AR-15 dimensions, so it works with typical mid-length low-profile gas blocks. Just confirm your gas block is also a mid-length setup and drilled for a standard roll pin. Matching the tube length to both your barrel's gas port and your handguard length is the key to reliable cycling.
| UPC | 784672665599 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GT-M6002 |
| Color | Black |
| Length | 17.4000 |
| Model | |
| Product Type | Gas Tube |
| Shipping Weight | 0.075 |
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