The Dead Air KeyMo Flash Hider in 5/8×24 (Dead Air part no. DA302) is built for .30 caliber rifles with a 5/8×24 muzzle thread, which is the common pitch for 7.62 barrels. Dead Air gives it mass-shifted, equal-length tines that cool burning gas at the muzzle without the ring or ping of a traditional prong design. The same device serves as the quick mount for a Sandman series or other KeyMo-equipped suppressor, and the suppressor removes easily without carbon-locking to the mount. It is machined from 4140 heat-treated alloy steel and finished in black nitride. If you shoot a 5/8×24 rifle bare some days and suppressed on others, this Dead Air flash hider stays on the whole time.

Key Specifications

• The muzzle thread is 5/8×24, the pitch that decides which barrels this version fits.
• The bore is .30 caliber, which matches the 7.62 rifles that commonly use a 5/8×24 muzzle.
• The tines are mass-shifted and equal in length, an arrangement meant to cool burning gas at the muzzle.
• The design has no ping, so the flash hider does not ring the way traditional prong designs can.
• The material is 4140 heat-treated alloy steel, built to hold up to heat and repeated suppressor mounting.
• The finish is black nitride, a hard, corrosion-resistant surface.
• The suppressor removes easily without carbon-locking to the mount, so it does not seize after shooting.
• It mounts Sandman series suppressors directly, so no adapter is needed on those cans.
• Other suppressors need a KeyMo adapter installed before they will mount to this flash hider.

Frequently Asked Questions

Is this the 5/8×24 version for .30 caliber rifles? Yes. This flash hider is threaded 5/8×24 and has a .30 caliber bore, which is the version Dead Air lists for 7.62 rifles.

Does it ping when fired? No. Dead Air designed the mass-shifted, equal-length tines specifically so the flash hider does not ring or ping the way a traditional three-prong design can.

What do I need to mount a suppressor on it? Sandman series suppressors mount directly. Other suppressors need a KeyMo adapter installed first.

Buy the Dead Air KeyMo Flash Hider, 5/8×24, .30 Caliber Bore

A .30 caliber rifle makes more flash than most, and this flash hider keeps it in check while holding a taper mount for a suppressor. Dead Air machines it from 4140 steel and finishes it in black nitride. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and see more suppressor parts and accessories.