Well, that is an interesting pic.![]()
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Well, that is an interesting pic.![]()
Between two groups of people who want to make inconsistent kinds of worlds, I see no remedy but force. - Oliver Wendell Holmes.
Ahh...I see what you did there.![]()
For reference, the wedge I had that started to crack and deteriorate was a black Colt one. There seems to be a few made by different vendors. The better (IMO) seem to be the orange/red that has a slight sheen to it.
The military requirement (as I have posted before) is to take a .020 feeler gage, push the upper to the left and right and attempt to penetrate to the lug area between the upper and lower with the gage. If it hits then you are supposed to replace the upper.
If you replace it and it still fails you replace the lower.
Owner/Instructor at Semper Paratus Arms
Facebook: https://www.facebook.com/SemperParatusArms/
Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/
M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141
Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
Per TM 9-1005-319-23&P;
1. With the upper receiver attached to the lower receiver, and the pivot pin and takedown pins in place,
perform the following test:
a. Apply hand pressure to push the upper receiver as far to one side as possible.
b. Attempt to insert a 0.020 in. thickness gage between the pivot pin lugs of the upper and lower
receivers.
c. If the thickness gage penetrates to the pivot pin at all accessible locations, repair by replacement of
the upper receiver or replacement of weapon is required.
2. If weapon fails the above test, remove the upper receiver and install a "NEW" upper receiver and
perform the test again.
3. If weapon now passes the above test, it shall be considered serviceable and continue in use.
4. If weapon fails the test with a new upper receiver, this failure shall be considered a shortcoming. This
shortcoming requires action to obtain a replacement weapon. Once a replacement has been received,
evacuate the original weapon to depot for overhaul.
Owner/Instructor at Semper Paratus Arms
Facebook: https://www.facebook.com/SemperParatusArms/
Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/
M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141
Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
I tested it. Although I can't provide pictures here, there is no appreciable/practical accuracy difference when I used an accuwedge or not.
I tried to keep it as scientific as possible, so here's the equipment used:
4cm diamond target with MOA grid.
50 yds.
Aimpoint 2-MOA T-1 with the 3x magnifier
COLT M4 rifle
M855A1 rounds
prone supported position (I actually put a bipod on for this test)
I shot 5 rounds with and then 5 rounds without the accuwedge; letting my barrel cool down a couple minutes in between.
The results were almost identical.
Owner/Instructor at Semper Paratus Arms
Facebook: https://www.facebook.com/SemperParatusArms/
Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/
M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141
Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
So most people here are saying not to bother with them. If someone who has combat experience says they are usually trouble that good enough for me. They may work good for some but why tempt fate?
Last edited by Dwsmitht343; 05-19-12 at 07:03.
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