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Short gas systems run hot and hard, so the tube feeding your bolt carrier needs to be up to the job. WMD's Pistol Length Gas Tube is machined from Mil-Spec 304 stainless steel and given the company's Nitromet treatment, a salt bath nitrocarburizing process that hardens the surface and shrugs off heat and corrosion. It's the kind of small part that gets overlooked until it fails, and this one is built so you don't have to think about it.
Pistol-length gas is the shortest of the four AR system lengths, generally paired with barrels around 10 inches or shorter. Because the gas port sits so close to the chamber, these systems see dramatically higher pressures than a carbine or rifle setup, which means the gas tube gets worked harder every single round. That's exactly where a hardened finish earns its keep. It's also a favorite for 300 Blackout builds running subsonic loads, where the extra dwell time helps everything cycle reliably.
Nitromet is essentially a next-generation Melonite finish, and it's what sets this tube apart from a plain stainless piece. The process brings the surface hardness up to around Rc 55 and adds a self-lubricating quality that helps the tube stay clean and resist fouling. Less carbon buildup means smoother cycling and less time spent scrubbing after a range day. The deep black color is a nice bonus if you're putting together a build where the details matter.
WMD keeps this straightforward by packaging the gas tube with its roll pin, so you've got what you need to pin it into the front sight base or gas block. Installation is a familiar job for anyone comfortable working on the AR platform, and the tolerances here are dialed in for a proper fit. If you're building or rebuilding a short-barreled AR or pistol, this is a dependable piece to anchor the gas system around.
Pistol-length gas systems are generally built around barrels of about 10 inches or shorter, which is where you'll find this tube at home. It's a common pick for AR pistols and short-barreled builds. Many 300 Blackout builds running subsonic ammo also use pistol-length gas even on longer barrels to help everything cycle.
Yes. WMD packages this gas tube with its roll pin, so you have what you need to pin it into your gas block or front sight base. It's a familiar install for anyone who has worked on the AR platform before.
Nitromet is a salt bath nitrocarburizing process that hardens the surface to around Rc 55 and boosts resistance to heat and corrosion. It also has a self-lubricating quality that helps the tube stay cleaner and resist fouling. On a short gas system that runs hot and under high pressure, that added durability really matters.
It's machined from Mil-Spec 304 stainless steel, then given WMD's Nitromet treatment for extra hardness and corrosion resistance. WMD Guns is known for its coating and finishing expertise, so you're getting a tube built to hold up over a long service life.
| UPC | 855899003522 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 1-NMGTPL |
| Color | Black |
| Product Type | Part |
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