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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 9/7/2005 5:03:23 AM EDT
There are some allen screws on the ARMS 39A2 and I wondered if they are adjustment points for the user.

My Bushmaster AR15 carbine is shooting low, even after a 25-click adjustment on the EOTech 512 scope mounted over the hand guards.


Link Posted: 9/7/2005 9:49:59 AM EDT
Link Posted: 9/7/2005 11:06:47 AM EDT
Thanks very much, Mike.

I'll crank in more clicks.

Much appreciated!

Link Posted: 9/8/2005 7:54:54 AM EDT
Link Posted: 9/9/2005 4:52:55 AM EDT
I later noticed that the brush guard on the ARMS 39A2 front was pushed tight against the AR-15 hand guard. That is, it may have kept the 39A2 pointing up slightly.

I remounted the 39A2, after swinging the brush guard out to the side. There was a dent in the hand guard from the previous mounting.

The brush guard is not required for my use.

I'll see if there is a change in the impact point, before adjusting the Eotech.

My initial sighting efforts were at 25 yards. I hope that is not the problem.
Link Posted: 9/9/2005 4:55:52 AM EDT

Originally Posted By Michigunner:
My initial sighting efforts were at 25 yards. I hope that is not the problem.

FWIW most use the IBZ Santose method 50 yard zero described here: http://groups.msn.com/TheMarylandAR15ShootersSite/zeroingmethods.msnw, with red-dots such as your EO or Aimpoints.

Link Posted: 9/9/2005 6:11:57 AM EDT
50 yards it will be.

Thanks, Mike.
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