It's called Ambush Firearms.
https://ambushfirearms.com/shop/rifles/ambush-5-56mm.html
www.ambushfirearms.com
You will be very happy with the Ambush 5.56 AR
It's a good shooting and well made AR15. I bought one recently and have been using it at the range. It will shoot Remington 55 grain Accutip bullets well. It also shoots the Hornady 68 grain HP bullets well.
I shot several different types of bullets in it two days ago at the rifle ranage and every bullet was in the bulls eye at 100 yards.
I also tried the Hornady 55 grain Max V bullets and they shot a little higher up in the bulls eye at 100 yards.
It opens up a little more at 200 yards but it's harder to hold the 16x power scope cross hair on the target at 200 yards. At least it's harder for me to hold steady at 200 yards.
I was using a Nikon M-233 scope 4 x 16 x 42 with the 600 BDC reticle.
This rifle is well made and of excellent quality IMHO. I did a lot of research and Daniel Defense impressed me the most for the price.
Also the Gun store that I bought my Ambush from lowered the price by $300 so I jumped on this gun when it went on sale. I was afraid that someone else would buy it before I did.
I've had it to the rifle range twice now and have been shooting various ammo though it. Remingtion Accutip v, Federal 5.56, Hornady 55 and 68 grain, and a few more Remington PSP and UMC ammo. The only shell I didn't like very much was the Remington PSP bullets. They don't shoot very good with the 1:7 twist 18" barrel on my gun. The points on the PSP bullets deforms easily.