100workfromhome 
Best results for buffer tube castle nut torque
Park Tool (109917) HCW-5 Lock Spanner
$15.95
$22.49
Amazon.com
Last update was on: May 5, 2024 6:45 pm
- Double sided bottom bracket lockring hook spanner
- One side is a single hook, the other is a hook spanner with 3 notches for better engagement in the lockrings
- The three-hook end will fit 3-notch lockrings with a maximum outside diameter of 46mm, and minor diameter (in the notches) of 40mm
- NOTE: The HCW-5 is designed for bottom bracket lockrings. For fixed gear lockring, use the HCW-17
Castle Nut Tool for Removal or Installation of All Types of Castle Nuts – A Perfect Wrench for The Enthusiast
$14.99
$20.54
Amazon.com
Last update was on: May 5, 2024 6:45 pm
- 2X STRONGER THAN STANDARD - Heat Treated High Carbon Steel, that is also case hardened and Black Oxide coated for the corrosion resistance.
- FITS ALL - Standard Castle Nuts and Commercial Castle nuts. Not a multi tool. This tool has only one job, and it does it well.
- Note for Amazon - NOT A MULTI TOOL. NOT A ARMORERS WRENCH. NOT PROHIBITED FOR SALE ON AMAZON.
- PERFECT FOR ALL APPLICATIONS - for all commercial and standard castle nuts with a 1 1/4” OD . Perfect for all areas these castle nuts are used. Plumbing, pipe fitting, hunting, fishing rods, safes, automotive, etc.
