35/39Ft-Lbs. for the lower receiver extension/buffer tube?

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[ARCHIVED THREAD] - 35/39Ft-Lbs. for the lower receiver extension/buffer tube?

Posted: 12/22/2005 3:33:03 PM EDT

Is 35/39 foot pounds for the rifle buffer tube to tight or just right? It is the MIL-SPEC but it just sounds to tight to me.

I just don't see why it has to be so tight when carbine stocks only have to be torqued on at around 40 inch pounds which is a little less than 3 and a half foot pounds.

Posted: 12/22/2005 6:20:50 PM EDT

[#1]

Bump.

Posted: 12/22/2005 7:03:57 PM EDT

[#2]

could be a miss print, dont not know. I just go tight with grease on the threads, I stop before the lower flexes using a magazine as a lower holder in the vice.

Posted: 12/23/2005 8:59:45 AM EDT

[#3]

BTT.

Posted: 12/23/2005 11:22:55 AM EDT

[#4]

It's mil-spec, so it's good enough for me.

BTW, my armorer's manual lists the torque spec for rifle stocks at 35/39 foot pounds and carbine stocks at 38/42 foot pounds.

Posted: 12/23/2005 11:58:07 AM EDT

[#5]

Quoted:
I just don't see why it has to be so tight when carbine stocks only have to be torqued on at around 40 inch pounds which is a little less than 3 and a half foot pounds.

Because the Carbine's stock nut will be staked in place to make sure it doesn't loosen. Since you can't do that with the rifle's receiver extension it has to be torqued to a much higher value.

Posted: 12/23/2005 2:08:48 PM EDT

[#6]

Thanks for the help guys! So are you saying I should torque to spec with some Moly grease and be done with it?

Posted: 12/23/2005 2:13:37 PM EDT

[#7]

Quoted:
Thanks for the help guys! So are you saying I should torque to spec with some Moly grease and be done with it?

Yes. Unless you think you know this rifle better than the world's largest and longest user of the M16 - the US Army.

[ARCHIVED THREAD] - 35/39Ft-Lbs. for the lower receiver extension/buffer tube?

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