For Utility Killing,I prefer the 2-12x Athlon BTR Gen2 Mil/Mil,over said Arken EPL4 '16x Mil/Mil. Hint.
It's illumination is VASTLY superior,2x is MUCH handier due same(I'll happily trade away a'16x ceiling to reap same),10 Mil's per revolution turrets are more intuitive,locking turrets will quickly spoil a guy and it's reticle is farrrrrr more forgiving. A pard got used on a Black Woof with the EPL4,as he lost the reticle,though he had it in a leg hold. Hint.(grin)
Crowtitude is a breeze. Hint.
Off the front porch,at 1300yds. Hint.
For threading needles as a Play Toy,the EPL4 can easily be pressed into service,but the FINE reticle is gonna catch up with you,for Utility Killing. I'm driving one a Vudoo Hummer and another on a CTR Sporter 223. Hint.
Relative sizing comparison. Hint.
The 2-12x has quite a bit more erector travel too. Hint..................