Fortis K1 Enhanced End Plate with Tapered Castle Nut for AR-15

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Product description

Lightweight AR-15 Castle Nut and Endplate with Friction Fit

Fortis created the two-piece K1 system to eliminate the risk of the castle nut backing out, while maintaining light weight.  The K1 endplate features quick detach socket for a QD sling swivel, and it installs easily to the receiver with the K1 castle nut.  These two parts end up fitting together with enough friction that they require no staking, set screws, or threadlocker to make sure your buffer tube is secure.

To see how the K1 works, as well as the K2, which uses a locking lever for a true mechanical lock.

Features

  • Lightweight design at only .59 oz / 16.8 grams total
  • Castle nut and end plate are 7075 T6 Aircraft Grade Aluminum
  • Quick Detach Socket – 360º rotational locking interface
  • No set screws or ratcheting system
  • Made in the USA

Specifications

  • Material: 7075-T6 Aluminum
  • Finish: Hardcoat anodized
  • Weight: .59 oz. Total
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Customer reviews 6

mrgordoandino Verified buyer
Its well machined and super easy to install and looks really good

AT3 Tactical · Hi there! Thank you for leaving such a positive review for our Fortis K1 Enhanced End Plate. We're glad to hear that it was easy to install and looks great on your AR 15. We take pride in our quality craftsmanship and appreciate your feedback. Happy shooting!

soupycampbell7520 Verified buyer
It fits snug, looks good, easy to install or take off if the need arises.

AT3 Tactical · Thank you for taking the time to leave a review for our Fortis K1 Enhanced End Plate with Tapered Castle Nut for AR 15. We're glad to hear that you are happy with your purchase and that it was easy to install. We appreciate your support and hope to continue providing quality products for your firearms. Happy shooting!

holyjunkmailbatman Verified buyer
Easy to install. Works and looks great

AT3 Tactical · Thank you for your review! We're so glad to hear that our Fortis K1 Enhanced End Plate with Tapered Castle Nut for AR 15 was easy to install and looks great on your rifle. We strive to provide high-quality products for our customers and we're happy to know that you are satisfied with your purchase. Happy shooting!

anthony.ketterman Verified buyer
Looks nice and works but impossible to install and turn tight with scratches and dings. Had to use Birchwood Aluminum Black to touch up and hide the marks.
ibreatheh2o Verified buyer
Beautiful machine work and definitely finished off my build. QD slot on the baseplate is a bonus. Liked it so much I got another red one for my other rifle as well.
harvey.boggs Verified buyer
Liked it so much I bought a second one to put on my other ar.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

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Warranty & returns

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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