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AR15.COM
9/20/2007 10:00:14 AM EDT
I'm replacing the receiver end plate with a sling mount and want to make sure I get it tightened down appropriately.  What does RRA torque the buffer tube castle nut to at the factory?

Also, does RRA recommend the use of any type of loctite to make sure it stays put?

thanks,
Dan
9/20/2007 11:31:48 AM EDT
[#1]
We use a little blue (removable) Loc-Tite on the area of thread behind the receiver where the nut will run across it and pick a little up to run it into the threads on the extension without getting any into the threaded portion of it that would go into (or allow it to seep into) the receiver.  This is standard on our civilian and LE rifles.  On our military rifles, we stake the nut and do not use the Loc-Tite.
Using the proper CAR stock wrench (such as our AR0165 model) you'll just take the nut tight against the back of the receiver end plate.  There's no provision for putting a torque wrench on that spanner wrench.
Steve/RRA
9/22/2007 11:20:52 AM EDT
[#2]

Quoted:
We use a little blue (removable) Loc-Tite on the area of thread behind the receiver where the nut will run across it and pick a little up to run it into the threads on the extension without getting any into the threaded portion of it that would go into (or allow it to seep into) the receiver.  This is standard on our civilian and LE rifles.  On our military rifles, we stake the nut and do not use the Loc-Tite.
Using the proper CAR stock wrench (such as our AR0165 model) you'll just take the nut tight against the back of the receiver end plate.  There's no provision for putting a torque wrench on that spanner wrench.
Steve/RRA



Why not just stake them all?

-Hershey
9/25/2007 12:49:24 PM EDT
[#3]
Lower Receiver Extension (Buffer Tube)
Rifle - 35 to 39 Ft. Lbs.
Carbine - Tighten the locking nut to 40 INCH pounds plus or minus 2 INCH pounds.
9/25/2007 12:52:23 PM EDT
[#4]
Just give it a grunt & stake it. You'll be good to go.