Anderson Manufacturing AR-15 Buffer Tube Castle Nut
Looking to finish off your AR-15 build with a quality, American-made part? Look no further than the Anderson Manufacturing Buffer Tube Carbine Castle Nut. This castle nut is machined from 4140 steel and coated with a manganese phosphate for durability. It’s a great replacement for an old or worn-out part and is perfect for new builds. So don’t settle for less—get your hands on an Anderson Manufacturing Castle Nut and rest assured you’re getting a top-quality product.
Anderson Carbine Castle Nut Features:
- Steel castle nut
- Fits mil-spec and commercial buffer extension tubes
- Made In the USA
- SKU: D2-J109-0000
The castle nut threads onto the rear of the buffer tube and locks against the receiver end plate, clamping the tube in place so recoil can’t work it loose over time. Anderson Manufacturing machines this castle nut from 4140 steel and finishes it with a manganese phosphate coating for corrosion resistance, matching the same finish standard used on mil-spec bolt carrier groups. Proper installation calls for torquing the nut down firmly against the end plate — a Spike’s Tactical Stock Castle Nut Wrench makes quick, correct work of it without marring the finish. This castle nut fits standard mil-spec and commercial-diameter buffer tubes alike, making it a straightforward swap for a stripped or damaged original on carbine-length AR-15 builds.
