PWS Ratcheting Locking Castle Nut | SHOT 2017

PWS has a ratchet lock castle nut. It eliminates the need to stake the castle nut to the end plate.


Right above the QD hole in the endplate is a small piece of wire spring. This interfaces with the ratcheting teeth on the castle nut.


The ratchet locking castle nut and end plate will retail for $29.99.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at


  • Christian Hedegaard-Schou

    Oh come on, now we’re just getting silly.

    Stake your effing castle nuts. It’s not permanent and doesn’t ruin the aesthetics if your gun!!

    • Machinegunnertim

      But it’s so old school, almost medieval!

      Smashing metal together to keep it in place. We are more technologically advanced than that.

      • Joseph Smith

        Do you even crush washer, bro?

  • JSmath

    Curious what reinstalling it about 5-7 times is gonna look like.

    • LGonDISQUS

      Battleworn like you just came back from Dakar, Fallujah, Jallabad and Mosul in one tour with your castle nut dangling from your humvee’s truck nuts.

      Extreme, man.

    • Drew Coleman

      Why would you be removing your buffer tube that often?

      • JSmath

        Reasons – Maybe in the midst of developing my own stocks/arm braces, or recoil systems.

        Also, I figure that’s a realistic ‘course of lifetime’ count that could be expected from an in-family weapon.

  • Roper1911

    oh! look! a problem looking for a solution!
    (stake it or loc-tite it.)

    • DonDrapersAcidTrip

      That’s a meaningless cliche phrase

      Nobody do anything new ever, because everything personally works fine for RoperBlackPowderMusket here

    • Twilight sparkle

      I’m pretty sure thread locker on something with mixed materials like aluminium and steel is a big… no go

      • Machinegunnertim

        Why is that?

        • Twilight sparkle

          because in order for the threadlocker to work there would need to be very little grease on those threads but that grease serves an important role of preventing galvanic corrosion between the two materials.

          • Machinegunnertim

            Isn’t the finish on the two metals enough to prevent that? I’ve heard of this before but never heard it happening between the two AR components.

          • Twilight sparkle

            I’m not an expert on the matter but I believe the two materials just have to be in electrical contact with each other. I know this has been a minor issue with the ar-15 platform in the past especially near the barrel nut which is why milspec specifies that aeroshell grease is supposed to be used in that area to prevent locking up from that corrosion or in a more extreame very very rare case the corrosion can lead to the barrel completely coming lose from the receiver

    • Drew Coleman

      What’s wrong with trying something new?

    • HerbertK

      This makes builds easier, and you can reversibly disassemble the lower, making the receiver easier to conceal should the need arise.

    • Blake

      Yeah except that moronic cliche doesn’t even remotely apply here. It’s the same price as normal QD endplates and comes with an easy attach/detach solution without the need to state your end plate. If you don’t understand why loc-titing something like that I’m not going to waste my time explaining it, look it up.

  • Nolan

    30 bucks, comes with a qd sling point, and makes a build simple for the beginner? I can see this one working out pretty well.

  • B. Young

    These have been for sale since first quarter 2016, longer if you bought the stock with it.

  • Jack Morris

    Of course people are already whining about this product. Common, guys; it’s an elegant and simple solution for a reasonable price. What’s not to like?

  • Sianmink


  • Joe Gamer

    I have their enhanced buffer tube, It’s a decent value for a new rifle build but a bit too pricey to add to a rifle you’ve already put together. Actually I REALLY like the system from a builders perspective, the buffer tube is very high quality and cut to work with piston systems as well.