Description
LIGHTWEIGHT, DURABLE, QUIET. NO COMPROMISE.
The Energetic Armament Vox S is a full-size 7.62mm suppressor built from C300 Maraging nickel-cobalt superalloy. This aerospace-grade material, originally developed for NASA rocket motor casings, achieves a tensile yield strength of over 270ksi after heat treatment. At 1,000°F, C300 maintains more strength than stainless steel or titanium at room temperature. The result is a 12.9-ounce suppressor with full-auto capability and no barrel length restrictions.
The Vox S uses the 1.375×24 HUB mount pattern, making it compatible with Dead Air Key-Mo, SilencerCo ASR, Q Plan-B, and Area 419 Hellfire mounting systems. Shooters already invested in these platforms can use their existing muzzle devices without purchasing additional hardware. A 5/8×24 titanium direct thread adapter ships standard with the suppressor.
The removable end cap features a wipe holder for subsonic applications. When installed, the silicone wipe seals around exiting projectiles to reduce sound and flash. Remove the wipe for supersonic or high-volume shooting. Users can make replacement wipes from 1/8″ reinforced silicone sheet per ATF regulations.
CAPITOL ARMORY’S TAKE
The Vox S addresses two common suppressor tradeoffs: weight versus durability and mounting flexibility versus proprietary lock-in. At 12.9 ounces with the direct thread adapter, it weighs less than many titanium suppressors while handling sustained full-auto fire. The HUB mount pattern (1.375×24) means compatibility with four major mounting systems out of the box. Energetic Armament’s patented banded core construction allows fast factory repairs if a baffle strike occurs. For shooters who need a shorter suppressor, the Vox K2 offers similar materials in a 4.9-inch package. If sound reduction matters more than full-auto rating, the titanium Lux provides better suppression at 7.9 inches.
SPECIFICATIONS
- Model: EA04
- Weight: 12.9 oz (357g) with direct thread and wipe
- Length: 5.9 inches
- Diameter: 1.55 inches (1.5 inches at core)
- Core Material: C300 Nickel-Cobalt Maraging Alloy (US origin, DFARS certified)
- End Cap: 17-4 H1150 Stainless Steel
- Direct Thread Adapter: 6Al-4V Titanium (Grade 5)
- Finish: Black nitride (Cerakote on DT adapter)
- Mount Thread: 1.375×24 HUB pattern
- Caliber Rating: 7.62mm / .30 caliber bore
- Full Auto Rated: Yes (5.56mm, .308 WIN, .300 BLK)
- Max Cartridge: .300 RUM
- Barrel Restrictions: None
- Wipe Compatible: Yes (standard equipment)
- Warranty: Lifetime
INCLUDES
- Vox S suppressor with 5/8×24 titanium direct thread adapter
- Wrench multi-tool (mount spanner and 1-1/4″ hex for end cap)
- Vox Blox vise block
- Anti-seize packet
- Instruction manual
- Decals
COMPATIBLE MOUNTS
- Dead Air Key-Mo (DA428)
- SilencerCo ASR Mount
- Q Plan-B
- YHM Phantom Q.D. Adapter
- Griffin A2 Adapter
- EA Thunder Beast Mount
COMPATIBLE MUZZLE DEVICES
- Dead Air Key Mount Muzzle Brake / Flash Hider
- Dead Air Xeno Adapter
- SilencerCo ASR Muzzle Brake / Flash Hider
COMPATIBLE ACCESSORIES
- Energetic Armament Vox Direct Thread Mount (1/2×28 available)
- SilencerCo Direct Thread Mount
- EA Flat Front Cap
- EA Flash Hiding Front Cap
- EA 5.56mm End Cap
VIDEOS
- Capitol Armory Review / Overview









