Anderson Manufacturing AR-15 Buffer Tube Castle Nut

Manufactured by Anderson Manufacturing
SKU: AM-26
MPN: AM-26
Manufactured by Anderson Manufacturing
37 Reviews

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Anderson Manufacturing MIL-SPEC AR15 castle nut secures your carbine buffer tube to your AR-15 lower receiver.

Anderson Manufacturing builds rifles, pistols, and parts utilizing the latest in computerized manufacturing. By keeping manufacturing in house, Anderson can offer quality, American-made products at an affordable price, backed by a limited lifetime warranty.
See More


BrandAnderson Manufacturing
Manufacturer.Anderson Manufacturing
TypeCarbine Castle Nut

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

37 reviews


Excellent product


Easy installation

good one


What can I say? It's a castle nut, it does what a castle nut is supposed to do.



Should have checked the reviews. All six of mine exhibited minor rust around the edges. don't mine the thin finish but this rust would not easily rub off. Looks bad especially when you are building for someone else.

Came with Rust


When I first got it I thought it did look a little rough. I tried to clean it up only to realize it had rusted already.



Got this product today and the edges are all rusted. Cant really complain as it's 4 dollars but still would like to recieve my parts in good condition free of rust and scratches

Great deal

by -

Works as expected. Anderson is reliable.

Castle nut

by -

Basic castle nut. Does what it's supposed to.