The Dead Air KeyMo Flash Hider for the SCAR 17 in 5/8-24 (Dead Air part no. DA305) is a muzzle device built for the .30 caliber SCAR. It uses mass-shifted, equal-length tines that break up and cool burning gas before it ignites outside the muzzle, so visible flash drops in low light. Unlike a traditional three-prong design, it avoids the audible ping. Dead Air machines it from 4140 heat-treated steel with a black nitride finish. It is designed as part of the KeyMo mounting system, so it works unsuppressed today and as a lock-up for a KeyMo suppressor later.

Key Specifications

• The thread is 5/8-24, the pitch Dead Air lists for the SCAR 17 version of this flash hider.
• The host is the SCAR 17, the rifle this variant of the KeyMo flash hider is listed for.
• The bore is sized for .30 caliber on the 5/8-24 version, matching the thread pitch.
• The material is 4140 heat-treated alloy steel, chosen to hold up to heat and hard use.
• The finish is black nitride, a surface treatment that resists wear and corrosion.
• Overall length is 2.70 inches, which gives the tines room to cool the gas.
• The design uses mass-shifted, equal-length tines, which disrupt and cool burning gas before it ignites outside the muzzle.
• The tine layout eliminates the ringing ping of a traditional three-prong flash hider.
• It is part of the KeyMo mounting system, which gives consistent lock-up and alignment for suppressor mounting.
• It works suppressed or unsuppressed, so it earns its place on the rifle either way.

Frequently Asked Questions

Is this flash hider made for the SCAR 17? Yes. Dead Air lists the 5/8-24 version marked SCAR 17 for that rifle, with a .30 caliber bore. The SCAR 16 gets a separate 1/2-28 version.

Does it ring like a three-prong flash hider? No. Dead Air says the mass-shifted, equal-length tine design eliminates the ringing effect of traditional three-prong designs while keeping flash reduction strong.

Can I run it without a suppressor? Yes. Dead Air designed it to perform whether the rifle runs suppressed or unsuppressed.

Buy the Dead Air KeyMo Flash Hider, SCAR 17, 5/8-24

A SCAR 17 owner who wants flash control now and a KeyMo suppressor interface later gets both from this one part. Order it with other gear from our suppressor parts and accessories selection at our Lubbock, Texas gun shop for fast, direct shipping.