Nut size info needed

[CMOS]

I'm looking to loosen the recoil spring tube nut on my M4.
It's No. 50 on the schematic here:
http://www.brownells.com/.aspx/pid=0...aticsdetail/M4

Can anyone tell me what the size of the nut is? I don't have the right size wrench and don't want to mess it up. I also don't want to bring my shotgun into Sears so I can try out different wrenches.

I ask because I need to rotate my recoil spring tube. From the factory, it's rotated a little bit from the true center, which puts the C-stock off at an angle.

Thanks.

[Hookster]

I'm looking to loosen the recoil spring tube nut on my M4.
It's No. 50 on the schematic here:
http://www.brownells.com/.aspx/pid=0...aticsdetail/M4

Can anyone tell me what the size of the nut is? I don't have the right size wrench and don't want to mess it up. I also don't want to bring my shotgun into Sears so I can try out different wrenches.

I ask because I need to rotate my recoil spring tube. From the factory, it's rotated a little bit from the true center, which puts the C-stock off at an angle.

Thanks.

Remarkable says you need a 13mm deep socket and to torque to 22 lbs on reassembly in post #2 of this thread:

http://www.benelliusa.com/forum/showthread.php?t=9475

Later,

Hookster

[CMOS]

Thanks for the reply. The nut in question is much bigger than even my 22mm wrench, let alone a 13mm one.

[tucker301]

[CMOS]

wrench

You are right. No need to overcomplicate this with a fixed crescent wrench when an adjustable will work well enough.

Thanks....

[needncash]

You are right. No need to overcomplicate this with a fixed crescent wrench when an adjustable will work well enough.

Thanks....

What is a fixed crescent wrench?

Crescent is a brand of adjustable wrenches.