1. Home

Strike Industries AR Enhanced Castle Nut and Extended End Plate - Blue

Manufactured by Strike Industries
Manufactured by Strike Industries
1 Review

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details



Strike Industries products are designed by shooting experts for the shooting sportsman.

The Strike Industries AR Enhanced Castle Nut and Extended End Plate provides both enhanced aesthetics and additional support to the receiver extension. An integral QD sling attachment point has been added for effortless manipulations in tight spaces and high stress without fear of the startling pain of a pinched hand. As an added bonus, it's also streamlines installation of the takedown detent spring and detent with a set screw and pass-through design.

Note: Due to dimensional tolerances between some manufacturer's receiver extension collar lengths and differing amount of true threads on various buffer tubes, some may experience difficulties installing. Please contact info@strikeindustries.com for a replacement castle nut if you cannot install.


  • Functional and aesthetic upgrade
  • Central QD sling swivel attachment point
  • Installs easily (recommended 35 foot pounds of torque)
  • Pass-through takedown pin spring and detent installation
  • Weighs just 1.87 oz

Note: First position will be lost

See More


BrandStrike Industries
MaterialAluminum and Steel
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

1 review

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Blue enhanced castle nut and end plate


Nice up grade to my recent build. Blue color stands out, and the assembly is strong and makes a good attachment point for my sling. But can't use the last stop on my stock. But don't really need it .