M4 Carbine V6.8

The Daniel Defense M4 Carbine V6.8 is a semi-automatic tactical rifle chambered in 6.8mm Rem. SPC. Daniel Defense specializes in making M4-style carbines and accessories. The company has nine models available and all of them meet military specifications and have similar actions, so the differences between the models are often subtle.

The V6.8 has mid-length Omega X Rail 9 handguards. These handguards are free-floating, so when the barrel heats up and swells, they won’t press against each other. It has four Picatinny rails running along the top, bottom and sides, which allow for easy mounting of optics or accessories. The top runs continuously and meets with the upper receiver.

It also has a mid-length gas operating system, so propellant gases are caught in a tube near the muzzle, the tube guides it back to the bolt and then catches in another tube on the bolt. When the gas is caught, it drives the bolt back. This delays recoil until the projectile has left the bore. Mid-length means that the gas is caught after a medium distance in the barrel, so less pressure is used to push the bolt back (compared to the short-length gas system).

Features include a chrome lined bore, adjustable BUIS sights, a vertical fore-grip, a MagPul buttstock that’s lightweight and adjustable, a cold hammer forged barrel, so a machine carefully carved the grooves in the bore. This process produces accurate and durable rifling. And it has a sling swivel attachment points, so users can attach a combat sling, which allows them to sling it while carrying it at the ready.

The cartridge 6.8 SPC is a newer combat cartridge and it’s more powerful than a 5.56, but less powerful to 7.62.

Daniel Defense recommends the V6.8 for military, law enforcement or personal security.

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