The NBS Mil-Spec Buffer Tube is a quality Receiver Extension (AKA Buffer Tube) machined from high strength American 7075-T6 Aluminum. This is a 6 position design and is a finished with Type 3 class 2 Hard Anodizing. It features incredibly smooth interior machining for quiet operation and less “sprioing” sound.
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Worked like it should, great product
Not perfect, but almost
I ordered two of these to replace other RE tubes that had bad machining rings inside the tube. These NBS tubes are well machined with a very smooth interior. The only problem is, as others have said, the slot for locking the adapter plate is too shallow. Not a deal breaker, but the slot is not cut to the depth of the threads as it should be. Do not underestimate the problems you can have with tubes that have interior imperfections. They can cause cycling problems and contribute to spring noise. From my experience, I would guess that a large percentage of tubes out there have bad interiors including some 7075-T6 and some brand name products. If you want a reliable tube for a ridiculously low price, buy one of these. I plan on buying more.
Fast and exactly what I needed
Great price and fast shipping. Who can ask for more?
Fast shipping great prices
Nicely built product.
New place to shop
Ordered one little part, or so I thought. AR15Discount has a good selection, fair prices and shipped fast. Now my first stop for AR parts and accesories.