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Questions & Answers
Where is this part made? Expert Answer

No country of origin is listed for this product.

Mark H.

by Mark H., Gear Expert, December 18, 2018
What is the actual thickness Expert Answer

The manufacturer has not provided that information. We recommend contacting them directly, they should be able to provide you with that information. You can reach them here: https://www.guntecusa.com/contact

by Ethan C., Gear Expert, September 13, 2019
Customer Reviews
Helpful Positive Review Everything you need, nothing you don't! by Pat, Verified Owner, September 11, 2019
It's a heavy duty end plate. Screws on tight, stakes easily enough, feels durable and as strong as can be. Mounted properly, this thing won't come off unless you really want to take it off. No need to waste the money on any other castle nut, stick ...
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3/3 found this helpful
Helpful Positive Review It’s a Solid castle nut by Capt Gus, Verified Owner, November 13, 2018
It does what it needs to ,do it works fine It’s not rocket science. You can buy cheaper or you can spend more money. But this works great. My armorers wrench was able turn this nice and snug no problem
3/3 found this helpful
Helpful Positive Review Castle nut by Dave, May 20, 2018
I bought this for a new AR built . It’s worked just fine . Did not see a lot of differents in this heavy duty and a regular one . It was about the same price as a regular castle but. I have build dozens of AR’s , I would buy this item again .
2/2 found this helpful
Helpful Positive Review Castle nut by Rich, November 15, 2018
This really makes my charger look nice paired with the brace and tube I bought from optics planet. I called to make sure which one I needed. The person I talked to was very nice and knowledgable. He also took my order over the phone My package arrive...
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2/2 found this helpful
Helpful Positive Review Guntech buffer tube castle nut by Mr., December 22, 2018
The guntech buffer tube castle nut was a great buy! This particular castle nut has crisp threads for ease of installation. The nut went right on and secured my end plate with ease. It was easy to tighten and stayed put with rugged use! Great product ...
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2/2 found this helpful
Most Recent Reviews Does the job. by Scotty, Verified Owner, January 11, 2025
The item works perfectly. Came just as described. Fast shipping.
Read All 9 Reviews
Gun Model: AR-15 Condition: New Color: Black

Code: 2AH-CAN-CASTLE-HD

MPN: CASTLE-HD

UPC: 714569647827

List: $11.98Save 25%
$8.99

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Product Info for Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube

Gen 2 Extra Wide For Stronger, More Durable Hold Steel Fits Mil-spec/Commercial Buffer Tubesimage

Specifications for Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube:

Manufacturer: Guntec USA
Gun Model: AR-15
Condition: New
Color: Black

Package Contents:

  • Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube

Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube Orderable Models

List of Orderable Models

Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube, Black, CASTLE-HD , MPN: CASTLE-HD , UPC: 714569647827 , Code: 2AH-CAN-CASTLE-HD

Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube Unavailable & Discontinued Models

List of Unorderable Models

USED Guntec USA AR-15 Heavy Duty Wide Castle Nut For Car/M4 Buffer Tube, Black, CASTLE-HD, EDEMO3, Condition Fair, Other , MPN: CASTLE-HD-EDEMO3 , Code: 2AH-CAN-CASTLE-HD-EDEMO-OT-D
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