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Posted: 1/31/2011 8:50:32 PM EDT
[#1]
No lock washer on the XM177E2
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Posted: 1/31/2011 9:00:38 PM EDT
[#2]
I know it's been said not to use the lock washer, but... from Ekie's USGI Colt Carbine parts variation guide:
"When the “grenade ring” is installed correctly it covers the lock washer (GAU-5/A/A and XM177E2 only):" 
I don't know either way, just stoking the fire! |
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Posted: 1/31/2011 9:10:57 PM EDT
[#3]
Quoted:
I know it's been said not to use the lock washer, but... from Ekie's USGI Colt Carbine parts variation guide: "When the “grenade ring” is installed correctly it covers the lock washer (GAU-5/A/A and XM177E2 only):" http://img.photobucket.com/albums/0603/Ekie12091941/Govt%20Carbines/variation%20guide/FS08.jpg I don't know either way, just stoking the fire! Ok now madman,,go ahead and install the lock washer,THEN see if the mounting lip of your XM148 will fit in there!!!! 
NO LOCK WASHER USED,part of the reason for the wrench flats is so you can torque it to proper spec. |
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Posted: 1/31/2011 10:24:13 PM EDT
[#4]
So the grenade ring acts as sort of an A2 crush washer?
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Posted: 2/1/2011 4:46:05 AM EDT
[#5]
Nope, just as a washer; which is enough.
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Posted: 2/1/2011 8:47:02 AM EDT
[#6]
No lock ring on mine. Few hundred shots and hasn't loosened up a bit.
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Posted: 2/1/2011 4:02:42 PM EDT
[#7]
Quoted:
Quoted:
I know it's been said not to use the lock washer, but... from Ekie's USGI Colt Carbine parts variation guide: "When the “grenade ring” is installed correctly it covers the lock washer (GAU-5/A/A and XM177E2 only):" http://img.photobucket.com/albums/0603/Ekie12091941/Govt%20Carbines/variation%20guide/FS08.jpg I don't know either way, just stoking the fire! Ok now madman,,go ahead and install the lock washer,THEN see if the mounting lip of your XM148 will fit in there!!!!
NO LOCK WASHER USED,part of the reason for the wrench flats is so you can torque it to proper spec. Where does the mounting lip of the 148 go on a 20" rifle? |
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Posted: 2/1/2011 8:06:29 PM EDT
[#8]
Torque spec?
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