Obsidian Arms AR-15 Castle Nut Staking Tool
or 4 interest-free payments of $3.56 with 
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Obsidian Arms Warranty what it covers
Product description
Obsidian Arms Castle Nut Tool: S7 Tool Steel with 45-Degree Displacement Design
Features
- S7 tool steel construction heat treated for optimal hardness
- 45-degree displacement angle for secure staking
- Black oxide finish prevents rust
- Lifetime warranty
- Made in USA
The Obsidian Arms castle nut staking tool solves the loosening problem that plagues improperly secured buffer tubes by displacing material at a precise 45-degree angle to create a mechanical lock. This tool works exceptionally well for gunsmiths, armorers, and serious builders who need castle nuts that stay tight under full-auto fire or hard use. What sets the Obsidian tool apart is the S7 tool steel construction heat treated to the correct hardness – it won’t bend or deform like cheaper tools, and the precise 45-degree displacement creates proper stakes that prevent castle nut rotation even under extreme vibration and stress.
Specifications
- Brand: Obsidian Arms
- Model: AR-15 Castle Nut Staking Tool
- MPN: OA-CNST
- Material: S7 Tool Steel
- Finish: Black Oxide
- Displacement Angle: 45 Degrees
- Warranty: Lifetime
What’s Included
- 1x Castle nut staking tool
Customer reviews
No reviews yet. Bought this one? Tell the next builder how it went.
Questions & Answers
No questions yet. Ask about fit, install or compatibility and our team answers within a business day.
Warranty & returns
Obsidian Arms Warranty
If for any reason you have a warranty issue with one of Obsidian Arms’ products, please contact their Support Team at OASupport@ObsidianArms.com. Please describe your situation, include your name, the product, and any images of the issue in your email. One of their technical specialists will then review your claim and contact you within 3-5 business days.
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.
