Receiver Extension Nut (Castle Nut)

Great quality product like always from BCM.

I don’t even have an AR but I needed a castle nut for an Ak stock. The quality is second to none but the main reason I went with BCM is because they sponsor the Bongino podcast, which I also recommend

Just liked the original! Perfect fit! Works great!

Great finish and solid steel! It what’s to be expected from BCM

I trust these parts! No problems ever with anything I’ve gotten at BCM.

Installed well with the BCM Buffer tube assembly.

This is definitely a castle nut. Very castley, very nutty.
Threads on fine, looks good. Not much else to say.

I know what you're thinking.... "It's just a castle nut.. they're all the same". I know... I use to be just like you. Let me tell you.... this is by far the BEST castle nut I have ever used. Well worth the few bucks more that it costs. The threads are so tight on this, screwing it on never felt so good. Spend the extra bucks and buy quality. You'll thank me later.

What can I say? Its metal, looks good, fits perfect, returning customer made!