MaTech AR15/M16 USGI Back-Up Iron Sight
Current U.S. Army standard-issue backup rear sight for M4 carbines and M16A4 rifles flips up instantly at the touch of your thumb when primary sight fails or tactical situation makes iron sights preferable. Designed in conjunction with Picatinny Arsenal engineering staff and rigorously tested at Fort Benning and Aberdeen Proving Ground for robustness, ease of use, and effective targeting out to 600 meters. Detent-locking lever lets you quickly switch to one of eight range settings: 200, 300, 350, 400, 450, 500, 550, and 600 meters. Adjust windage easily with grooved, A2-style windage knob and position markers on the back of the sight for repeatability of settings. Bright, white, laser etched numbers and markers are clearly visible even in low light. Rugged machined steel construction ensures sight retains zero even under heavy, full-auto fire. Clamps securely to the rearmost slot of MIL-STD 1913 Picatinny or Weaver-style accessory rail on flattop receiver via simple but strong locking bar and bolt. Rounded corners and beveled edges further reduce danger of snagging on other gear when sight post is down. Regulates correctly with A2 front sight on any AR-15-style rifle or carbine; instructions included for adjusting front sight post height to set exact zero. Designed to co-witness with most non-magnifying optical sights.
7 Reviews Hide Reviews Show Reviews
As advertised , Surplusammo is the best.Super fast shipping great packaging. Best price I could find!!
It was the real deal and at a great price!
Great product has the ability to use all the time, site-in on the white line @100meters and adjust accordingly. Windage knob has room to adjust for right-hand spin drift
Looked alot of places for this sight, most are way over priced. Bought here for good price and fast shipping.
If you like open iron sights like i do and want to make quick adjustments this is the sight for you, after putting the it on i had to make 1 adjustment to the front sight then it was all good shooting after that, and i had the tightest group i have ever shot at 300 yards due to the quick and easy adjustments, very satisfied.
I bought this sight for my block 2 clone build and it works great as expected. Obviously not the lightest but feels like it can take a beating.
I've used this a couple times on the range on a new build. It's not the lightest BUIS on the market, but I wasn't putting it on my lightweight rifle. It's currently my primary sight as I haven't purchased an optic for it yet (might not...300 AAC isn't a long distance round) but I liked the functionality of the sight. It locks upright tightly, and will fold completely out of the way. The aperture peep is a little on the small side (keep that in mind when pairing with a good front sight) but that allows for greater accuracy once you get comfortable bringing the peep to center. I haven't tested the range markers yet, but again for a .300 it's probably not worth it! Aesthetically, it looks great when folded down, but with the sight up, it looks a little...lacking. Great sight though! I like using it, I didn't buy it for the aesthetics anyway.