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The gas tube is one of those parts nobody thinks about until it starts leaking or a build won't cycle right, and that's exactly where Sons of Liberty Gun Works earns its reputation. This is their rifle-length tube machined from stainless steel and given a QPQ treatment, which is a salt-bath nitride process that hardens the surface for a longer service life and better corrosion resistance. It runs gas from your gas block back to the bolt carrier group, and doing that job cleanly is the whole ballgame for consistent function.
Rifle-length is the longest of the standard AR-15 gas systems, typically running right around 15 inches and paired with barrels 20 inches and up. That longer distance from the gas port means a softer, slower gas impulse, which translates to less felt recoil and less wear on your bolt carrier group over time. If you're building or refreshing a full-size 5.56 or .223 rifle, this is the tube you want. It's a drop-in replacement that works with any Mil-Spec rifle-length gas block and upper.
Gas tubes live in a brutal environment: superheated gas, carbon fouling, and constant thermal cycling. The QPQ treatment on this SOLGW tube helps it shrug off corrosion and hold up to heat better than a bare tube, which is why it's a smart insurance policy for a rifle you actually shoot. SOLGW builds these to the same standard they put in their own complete rifles, so you're getting a component that's been proven under real use rather than a bargain-bin filler part.
Installation is straightforward for anyone comfortable with a punch and a light hammer. The gas port on the tube needs to line up with the opening in your gas block, and the included roll pin locks everything in place. Get the alignment right and you'll have a rifle that cycles the way it's supposed to, round after round.
Rifle-length gas systems are built for barrels that are 20 inches and longer. The tube itself runs about 15 inches and puts the gas port roughly 12 inches from the rear of the barrel. If your barrel is set up for a rifle-length system, this is the correct tube.
QPQ is a salt-bath nitride process that hardens the surface of the stainless steel. It boosts corrosion resistance and helps the tube hold up to the constant heat and carbon fouling a gas system sees. The result is a tube built for a longer service life.
Yes, the roll pin is included in the package. That's the small pin that secures the tube to your gas block once you've lined up the gas port. You won't need to source it separately.
It is. This is a factory OEM component that fits any Mil-Spec rifle-length gas block and upper receiver. Installation just takes a punch and a light hammer, with the tube's gas port aligned to the opening in your gas block.
| UPC | 865038000114 |
|---|---|
| Manufacturer |
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