Micro Red Dot Sight, Precision Red Dot Only No Green

Long term UPDATE 5/3/2019 After 3 years of service using this red dot I have put 2000 rounds through my rifle. The Micro Red Dot has been dumped in a puddle by accident, ran through 10 degree weather without fog, rained and snowed on, kept in my tent overnight through -10 degree weather and for all practical purposes has been used, a lot. I recently did some drills out running through the Sierra Nevada hills running my rifle to empty and transitioning to pistol. In the running of the rifle, I dumped the dead weight (rifle) when empty and at the end of the stage came back for retrieval of the rifle to redo the course all set in the very rocky high desert, the rifle was dumped in the rocks and hard pack not on a fluffy pillow or soft loamy sand. When I say "Dump the dead weight" I mean dump the dead weight, no messing around, undo the buckle on my rifle and drop the rifle. I did this drill 5 times, the rifle held zero consistently and hit every single time, ever time. On the 5th run I was finished and packed up. Upon cleaning and inspection at home I found that I have damaged and cracked the internal red coated front lens. The red dot still illuminates and the sight still functions as intended. Upon cracking the internal lens the sight was no longer zeroed and thats expected when you end up breaking a reticle. I am thoroughly impressed with this sight and I have grown to love it. The only thing I can say is that the 4 MOA dot is too damn big, a 2 MOA dot would be perfect along with a lens that is a little less green. The other thing I have loved on this sight is that when the sight is off it is not sucking much battery (if any) I have stored my rifle at one point for 7 months without a change of battery and the battery still cranks on and still cranks up BRIGHT on 11. This is a very very good reticle for the money, after using this Red Dot I don't ever intend to try another budget $20 red dot sight, this thing is tough and bright and holds zero very very well. My next Red Dot will be something with a smaller dot 2-3 MOA and I will replace this Fieldsport Micro Red Dot (RED DOT ONLY) and have it as a backup. I highly recommend this Red Dot.I just purchased this red dot 11/16/16 after seeing a review on YouTube about it, I will update my review on the product once received. I will be mounting it to my S&W M&P15T 5.56 equipped with MBUS sights and a 1000 Lumen flashlight. I will be doing run and gun drills with targets ranging from 5-100+ yards to get a real idea of how this red dot performs. I'll give an open and honest opinion of this sight after some legitimate testing. From one patriot to the rest, may god bless you all and may god bless the Republic of The United States of America.-An oath keeper I received my red dot 3 days after purchase, November 19, 2016. The packaging was snug, no damage to the optic and it came with an allen wrench and battery as well as the manual, in which is surprisingly detailed. They claim 2000 hours of run time on setting 7, in other words on 7 it should stay on for 83 days. As I said before I have MBUS front and rear, the red dot is too low to use the MBUS whatsoever without first removing the red dot, however I had a buddy 3D print me a picatinny riser at 20mm tall. It works well, however I would recommend an 18mm riser so that the peep alignment is in the direct center of the 20mm reticle. I did a quick adjustment with the optic on my rifle at home, I aligned my front sight in the peep and adjusted the red dot to the top of the front post. When I got out into the desert to test the optic, I first sighted in at 25 yards, it was about 1MOA off high and right, but I was on paper and had it sighted in 5 shots. The only caviot is that the red dot is 4MOA (4" at 100 yds) so if you want accuracy, place your red dot just UNDER your shot placement and you can be more precise with your shots. After doing so I did some run n gun shooting in daylight, low light and night time. During the day settings 9-11 seemed to work well, but in low light (just before dark) 4-8 worked better due to the slight glare around the dot on settings higher than 8 that are not as noticeable during the daytime and at night 3 was about perfect with the dot being nice a crisp and still bright enough to use with the 1000 Lumen flashlight turned on. I put 300 rounds through my 5.56 AR and the sight never once lost it's zero, shut off, flickered, became dim, from my experience there was not a single issue with this red dot. The optic got banged around on the floor behind the seat of my truck for 5 miles on the off road trail before reaching our shooting destination, I ran with it, my brother ran with it, banging against my LBE, through branches and thick brush, slamming onto the ground for prone long shots. I didn't abuse the optic, but I didn't go easy either. My final take on this optic thus far is that for an AR/ 5.56 platform or .22LR or BB/ Pellet guns it's perfect for quick acquisition and fire under 100 yds, past 100 yards is doable, you just have to really take your time because of the red dot being so large (4MOA). I am not sure if it would withstand any more recoil, like 7.62 x 49/51 or a shotgun, but for the lighter recoiling calibers it is well worth the money. I am not sure if I would put my life on the line with this optic just yet, but it seems thus far to be a solid piece of equipment. I will keep updating this thread with new developments. Thanks.-An Oath Keeper

Battery life isn't great but for the price, you can't beat it

Ordered two after seeing some of the torture test videos and comments. So far pretty pleased with what I see for $20. For this price you can put a red dot on just about every firearm you own, and expect reasonably good performance.Pros:- Dot seems smaller than 4MOA and looks very close to the 2MOA dot on my Primary Arms MD06 dots.- Rugged construction. The extra protective glass on the front is a nice bonus and protects the angled coated collimator lens.- Appears to be nitrogen purged - this isn't advertised in item info, but there is a nitrogen purge port on the bottom of the dot.- Good solid feel to brightness adjustment knob.- The brightness scale of the dot is very good, starting very very dim on 1 and very very bright on 11. I tested the unit in daytime in the snow, and the dot is easily visible in the bright white snow starting on the 5 setting.- The wide scale of dot brightness settings means that the unit will be easy to use with NV for those who have it.- Built in mount is easy to tighten to proper specCons:- Of the two units I received, one has a strong blue hue to the lens, while the other is less noticable but is still there. Both have a stronger blue hue than my older Primary Arms MD06 sights, but the MD06 is still not 100% clear either.- Older units apparently had no brand/model markings but both the units I received are marked "FieldSport" on the side. I don't care but some may not like it.- Included battery is junk. Use higher quality batteries.- Product manual shows the optic having a removable base. Obviously it does not. It would be nice if it did, but then it wouldn't be $20.- The emitter ring seems mounted slightly off center and looks a little weird, it's the same on both units. Fortunately this is not noticable when shooting.UPDATE: Both units had the brightness knob loosen over time, to the point that it was no longer sealed (there is a small O-ring where it meets the optic body), and eventually the unit can flicker or shut off due to poor battery contact.. In both cases it was because the small phillips head screws inside had backed out of the main optic body. The internal construction of this optic is fine, but these screws need to have thread locker applied at the factory, and they do NOT. None. Any amount at all would be better than none.To disassemble the brightness knob, you have to remove the battery, then use a pair of C-clip pliers or similar tool to engage two teeth to unscrew the collar that holds the resistor plate in. Once the collar is screwed out, the resistor plate will pop out of the knob, and you can access the screws below. You will almost certainly find that they are all loose. Remove them, apply red thread locker, and reassemble - tighten the screws gently as they don't require a lot of force. The brightness knob should feel solid now.When reassembling, the knob should be installed set to "0" and the resistor plate needs to be clocked to it at the top of the resistor plate where there is no resistor or cross connect. If your C-clip piers have very small teeth, you can insert it into a flat keyway that is manufactured to the resistor plate, and as you tighten the threaded collar, the resistor plate will remain clocked to the "0" position with the knob.This repair takes about 15 minutes.In my opinion this is an otherwise great budget optic with one fatal flaw above. If you have the patience to disassemble the unit and apply thread locker as above to correct the factory's mistaks, it's still a great bargain. I've had zero issues with the two that I've bought since this issue was repaired, in probably 750+ rounds combined use with 7.62x39 and 5.56.

Decent sight still have to see how it holds up throughout time.

Had to manipulate my gun a bit for this sight to fit but it is a great sight!