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Setting up a mid-length AR-15 gas system usually means buying a gas block and a gas tube separately and hoping the fit and finish line up the way you want. LBE Unlimited skips that guesswork by pairing their low profile .750 gas block with a mid-length gas tube already installed, giving you one less thing to measure, cut, or second-guess during your build.
The block itself is machined from steel and finished in black nitride, which gives it solid resistance to the heat and fouling that come with regular use. Nitride finishes also tend to hold up better against rust than standard parkerizing, so this is the kind of part you install once and don't think about again. The low profile design keeps the block tucked under most handguards without adding bulk or snagging on gear.
The gas tube is built from 304 stainless seamless tubing, a material choice that resists corrosion and handles the heat cycling of a gas system without warping over time. Because it's a mid-length tube, this gas block is meant for mid-length gas system builds specifically, so double check your barrel's gas port location before ordering if you're not sure what length you're running.
This piece is a straightforward swap for anyone assembling a mid-length AR-15 upper from scratch or replacing a worn or pinned gas block on an existing rifle. LBE Unlimited builds their AR parts in the United States, and this gas block and tube combo reflects that same attention to fit and finish you'd want on a rifle you're planning to shoot a lot.
Yes, the mid-length gas tube is installed in the gas block right out of the package. You just need to slide it into place on your barrel and secure the roll pin through your barrel and gas tube.
No, this specific block is set up with a mid-length gas tube, so it's built for mid-length gas systems only. LBE offers the same low profile block with rifle-length and pistol-length tubes if your build calls for a different length.
This is a .750 inch low profile gas block, so it's made for barrels with a .750 inch gas port journal. Measure your barrel before ordering since AR-15 barrels also come in .625 and .875 diameters depending on the manufacturer.
Nitride finishes are known for holding up well against heat, fouling, and corrosion, which makes this a solid choice for a gas block that's going to see consistent use. Combined with the stainless gas tube, this setup is built to handle repeated firing without needing much attention.
| UPC | 706612408028 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARLGB-MBLK |
| Color | Black |
| Product Type | Gas Block |
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