Anderson Manufacturing AR-15 Buffer Tube Castle Nut
Details
Details
Features:
- Mil-Spec dimensions for AR-15 buffer tubes
- Manganese Phosphate finish
- Wrench cutouts for installation
- Cutout for staking
- Manufactured in the United States
The AR-15 castle nut gets its name from the castle turret like cutouts that allow a castle nut wrench to slide in and allow you to torque the castle nut down. In general, it is recommended that you torque your castle nut to 40 ft/lbs and do not use thread locker on these threads as that will give you inaccurate torque measurements. The wrench cutouts will face away from the receiver and a smaller cutout will be on the side that faces the receiver and sits flush with the end plate. Using a hardened punch, place the tip on the edge of the end plate and lightly tap it with a hammer to deform the metal into the cutout on the castle nut. This will prevent your castle nut from backing off the threads over time while still allowing you to use a wrench and remove it for maintenance if necessary.
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.
Ratings & Reviews
40 reviews
Excellent Mil-Spic Castle Nut
by JamesC
This is just what you are looking for if you are looking for a castle nut.
Perfect
by Jason Williams
Threaded right onto the buffer tube and torqued down great.
Castle nut
by Jason Kantarjian
Used two of them this week. They are good nuts. Will buy again
storm the castle...nut. wait. what?
by THOMAS
was a little disappointed to see there's no archers guarding the castle. but it's all good i put it on, twisted it to the right and it's still there. five stars!
Solid product
by Kevin Matlock
Went on easy without any slip from the castle nut wrench. Good solid product with a good price.
no complaints
by snicl1
what can I say it works.
good one
by Barbara
What can I say? It's a castle nut, it does what a castle nut is supposed to do.
Anderson Manufacturing Mil-Spec Carbine Castle Nut
by Sam O.
Works great.
AR 15 Parts
by anonymous
Just what i needed at a great price.Prompt shipping.5 star.
Castle nut
by Jason Kantarjian
Used two of them this week. They are good nuts. Will buy again