MK262 Ammo For Sale

Originally developed for U.S. military use by Black Hills Ammunition, MK262 is a 5.56x45mm round loaded with a 77 grain Open Tip Match (OTM) bullet. It was created to increase the effective range and accuracy of the M4 and other short-barreled rifles, outperforming standard M855 green tip rounds in both precision and terminal ballistics.

What Makes MK262 Unique?

MK262's heavy 77 grain projectile offers better long-range stability and improved fragmentation upon impact compared to standard 62 grain loads. While technically not a hollow point, its OTM design and superior accuracy make it a favorite among marksmen, special forces units, and long-range AR-15 enthusiasts alike.

Ideal Uses for MK262 Ammo

MK262 is best suited for:

• Precision shooting with twist rates of 1:7 or 1:8
• Hunting small to medium game at longer distances
• Self-defense in scenarios where accuracy and barrier penetration matter

Its enhanced performance makes it a reliable alternative to traditional 5.56 loads, especially in scenarios demanding superior accuracy and terminal effect.

Explore More AR-15 Ammo Options

If you're building a loadout or just want to compare performance, check out our full selection of AR-15 ammo for everything from budget-friendly plinking rounds to premium defense loads.

Compare Ballistics & Performance

Curious how MK262 stacks up against M193 or M855? Visit our full 5.56 ballistics chart for detailed velocity and energy data across different grain weights and manufacturers.

What are the most popular 5.56x45 brands you sell?

• Federal 5.56 Ammo
• Hornady 5.56 Ammo
• PMC 5.56 Ammo
• Winchester 5.56 Ammo
• Wolf 5.56 Ammo

You can filter our entire selection using the left sidebar to see which brands we currently have in-stock and available using the Manufacturers filter. You can also filter by attributes such as Bullet Type, Bullet Weight, Casing Type, and Primer Type to find what you need.

Popular 5.56x45 Ammo Options

• 200 Rounds of 5.56x45 Ammo
• 150 Rounds of 5.56x45 Ammo
• Green Tip 5.56x45 Ammo

Written by

Molly Carter