PWS Ratchet Lock Castle Nut and Endplate Set 4BTRLPB1
$39.95 $37.69 Add to cart

PWS Ratchet Lock Castle Nut and Endplate Set 4BTRLPB1


(6 customer reviews)

53 in stock

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Big Tex Outdoors



The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate features a QD mount and easy installation with any buffer tube.


The patent pending Ratchet-Lock Design eliminates the need for staking the castle nut and gives a rock solid lock up while being able to remove it easily if needed in the future.


The central QD sling swivel mount allows for neutral positioning of your firearm with multiple sling configurations.

Additional information

Weight 12.804448198989 oz
Dimensions 010 × 6 × 1 in

6 reviews for PWS Ratchet Lock Castle Nut and Endplate Set 4BTRLPB1

  1. Philip Mannino (verified owner)

    The easiest and very secure to attach your buffer tube

  2. craigjamison5594 (verified owner)

    This is one of the best values in the world of AR upgrades. Not much to a castle nut and end plate right? Well if you’re always tinkering with things or are a home builder, this ratcheting system is much better/easier to install and remove from a rifle than staking the castle nut. The QD endolate is an awesome bonus as well. BTO seems to have the best prices on these.

  3. Matthew Humphrey (verified owner)

    Simple and useful upgrade for AR builders. By using this, you don’t have to stake your castle nut. But even more importantly, if you need to remove the castle nut, you won’t have to break the staking to do so.

  4. Tim Claiborne (verified owner)

    Works as designed. Haven’t moved and I don’t expect it to. The QD slot for the baseplate makes attaching a sling super easy. Looking for something to make your build a little easier, here you go!

  5. CptMaxPower (verified owner)

    I think the fit and finish of this product are excellent. I like the idea of being able to remove the castle nut without having to worry about restaking. The QD mount is nice, though I probably won’t use it personally. The only reason I knocked one star off is because there definitely is an audible and tactile clicking (ratcheting) as you start tightening down the castle nut, but towards the end of the tightening process that really isn’t there. I don’t consider this a big issue, but it’s worth noting.

    The shipping costs and speed were excellent.

  6. Anthony Gutierrez (verified owner)

    Perfect system replacement for not having to stake your castle nut. I have two other sets and they are easy to install and stay put! Love it.

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