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Burris FastFire II Red Dot Reflex Sight



At this point, I decided to mount the FastFire II on my Smith & Wesson M&P15.  In about two months, I was heading to Front Sight for a 4 day practical rifle course and wanted to try a dual-optic setup on my M&P15.  The 3.5x35 ACOG scope is currently mounted on the M&P15's upper rail.  There was enough rail space to accommodate an offset Picatinny rail.


Daniel Defense offset rail on M&P15

Daniel Defense has a nice MIL-STD-1913 rail that allows for mounting an off-set optic.  Since I am right handed, I mounted it so the SureFire II will be offset to the right side.  Weighing in at 1.2 ounces, the 6061-T6 aluminum rail adds very little to the M&P15. 
 

Daniel Defense offset rail on M&P15 with ACOG

As you can see, the Daniel Defense rail slips in nicely beneath the ocular lens of the ACOG.  I decided to mount it here rather than further forward on the Troy handguard rail.  I gave it a try at that position and found it was much more of a challenge to quickly get a good sight picture.  Being up close and personal is the intended purpose of this optic and so acquiring the target quickly is a must do. 
 

Burris FastFire II mounted on Daniel Defense offset rail on M&P15 with ACOG

The last step is to attach the FastFire II to the offset rail.  With the FastFire II screwed to its Picatinny base, the weight is 1.6 ounces.  Add the Daniel Defense off-set rail at just 1.2 ounces and you have an optic system that tips the scales at a whopping 2.8 ounces.  Not bad.....not bad at all! 
 

M&P15 with Burris FastFire II mounted on offset rail

Ready to go it is.  I usually don't have the vertical grip attached, but it works well during a photo op.  I do use it for longer shots during training.  At 100 yards and more, I'm not steady enough to consistently put offhand shots where they count. 

Update:  10/11/2010

The first range session (earlier today) went quite well. Three of us hit the range about 8:00 this morning and enjoyed several hours of good practice time. (hey, it beats the heck out of going to work, right?)

First thing I did, after helping Bob get his AR-15 with a new EOTech hitting paper, was to zero the FastFire II. My first task was to see how it worked at close quarters 7 yard hostage head shots. 3 groups of 3 rounds later, the M&P15 was putting shots in a shared hole. We set the range timer for the appropriate par time and gave it a try. All shots into the head box. I gave Gary the rifle and he ran several rounds using the new red dot. His were all hits too. While it may look a little unconventional, it works well. Even when bringing it on target from any of the three ready positions, target acquisition was quick and defined. Thumbs up so far.

We spent the remainder of the morning practicing from 7 to 50 yards. On my next trip out, I'm going to re-zero for 15 yards and also for 25. I'm curious to see what the difference is in POA vs. POI are at 7, 15, and 25 yards with the change in zero. Will post another update when I get back from the range.

Update:  01/21/2013

The FastFire II is now residing on my Ruger .22LR pistol.  You can see the details here
 

 

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