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ATI AR-15 Castle Nut
The Castle Nut from ATi Outdoors is a high-quality component designed for use with AR-15 and M16 rifles. Constructed from durable steel, it securely attaches the buffer tube to the lower receiver. This castle nut features a unique design that allows for easy installation and removal while still providing a tight and secure fit. The parkerized finish provides resistance against rust and corrosion, ensuring a long-lasting and reliable component. This castle nut is a necessary component for any AR-15 or M16 rifle build, and it is designed to meet or exceed mil-spec standards.
Features:
- Steel Castle Nut
- Works with Commercial, Military and Hybrid Buffer Tubes
- Virtually Indestructible
- Manufactured in the USA
- Limited Lifetime Warranty
Fits: AR-15 and all AR Variants
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The distinction between inferior quality and premium AR Castle Nut is undeniable. At MSP, we only offer AR-15 Parts from the most trusted brands like ATI Outdoors. Buy with confidence that we stand behind the product we sell.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.
Customer Ratings & Reviews
Ratings Snapshot
out of 5
5
(4)
4
(0)
3
(0)
2
(0)
1
(0)
Would recommend this product.
100%
out of 5
5
(4)
4
(0)
3
(0)
2
(0)
1
(0)
Would recommend this product.
100%
4 Total Reviews
- 1
Better than DPMS,
Walter J.
Location:
Date:
January 11, 2023
The ATi Castle Nut is an improved version of the DPMS model that I have used before; the design has deeper cuts or deeper castles, which results in a better fit when using a castle nut wrench or multi-tool for tightening. This means less tendency for the wrench to slip and damage the finish on the nut, or dig into the buffer tube or stock tube threads. This feature is especially beneficial for builders and DIY enthusiasts who want to make sure that the build is stable and secure. The finish on the ATi Castle Nut is also superior, with a better-parkerized finish that is resistant to rust and corrosion. After using several DPMS Castle nut in building 7 or 8 ARs, I have decided to only use ATi Castle nut for all my future builds.
Recommended
Durable but a costs a little more
DM
Location:
Date:
December 18, 2019
This Castle Nut is being used on a mil-spec buffer extension tube. This product was less brittle than other castle nuts I purchased from competitors. It is more expensive than others, but I found it to be more durable such that I am confident in the torque applied (approx. 40 ft-lbs) will prevent the nut from loosening under normal conditions; competitor castle nuts were chipping where the lugs of the castle nut wrench fit. It includes indentations for staking, which were also absent from competitor’s products.
Recommended
Good Castle Nut
Jeremy
Location: California
Date:
March 30, 2018
Solid black finish, chambered edges for my edge lords that like the curves and it's thicker and wider than other crap quality castle nuts for the same price. Put this next to an American made $20+ nut and you won't tell the difference. I overtorqued it and it didn't bend/nick/scratch even a little.
Verified Buyer
Recommended
Good Castle Nut
Jeremy
Location: California
Date:
March 30, 2018
Solid black finish, chambered edges for my edge lords that like the curves and it's thicker and wider than other crap quality castle nuts for the same price. Put this next to an American made $20+ nut and you won't tell the difference. I overtorqued it and it didn't bend/nick/scratch even a little.
Verified Buyer
Recommended
4 Total Reviews
- 1
