The Energetic Armament Vox K2 is the compact, hard-use 30-cal can: 4.9 inches and 10.4 oz with its direct thread, with a core laser-welded from C300 nickel-cobalt maraging steel, an aerospace alloy far stronger at temperature than 17-4 stainless. That strength is what lets Energetic make the walls thin, which cuts weight and adds internal volume in the same small package. Against the earlier Vox K on a Mk18, the K2 tested 60% better in sound per ounce at the muzzle and 25% better at the ear.
It ships with a wipe end cap as standard: a high-temperature silicone wipe seals around subsonic bullets for the quietest possible shot, and comes out in seconds for hard supersonic use. Rated for 5.56, 308 and 300 BLK on full auto and for 300 Win Mag and 300 RUM, with no barrel length restrictions. Every Energetic centerfire can carries the patented Serial ID Ring: the serial number lives on a separate ring, so if the core is ever damaged, Energetic replaces the core and your ring, your serial and your tax stamp stay the same. No new Form 4, no new wait. Lifetime guarantee, made in the USA.
Why it stands out
- 4.9" and 10.4 oz with the included 5/8x24 titanium direct thread
- C300 maraging superalloy core, black nitride
- Full-auto rated on 5.56, 308 and 300 BLK; 300 WM and 300 RUM rated
- Wipe end cap standard for subsonic use; flat and flash-hider caps available
- 1.375x24 HUB rear thread: SilencerCo ASR, Q Plan-B, Project E and other HUB mounts
- Serial ID Ring and lifetime guarantee, made in the USA
Specifications
| Caliber | 30 cal / 7.62mm bore: 5.56, 308, 300 BLK (full auto), 300 WM, 300 RUM |
|---|---|
| Length | 4.9" with direct thread |
| Diameter | 1.55" at the ID ring, 1.5" core |
| Weight | 10.4 oz with direct thread and wipe (10.0 oz without the wipe) |
| Material | C300 nickel-cobalt maraging steel core, 17-4 end cap, grade 5 titanium adapter |
| Mount | 5/8x24 direct thread (included); 1.375x24 HUB rear thread |
| Finish | Black nitride, graphite Cerakote adapter |
| Full-auto rating | Yes |
| Barrel limit | None |
| Part number | EA11 |
| UPC | 853406008114 |
In the box
- Suppressor with the direct-thread adapter
- Wrench multi-tool (mount spanner and 1-1/4" hex for the end cap)
- Vox Blox vise block
- Packet of anti-seize
- Instruction manual and decals
Compatibility
5/8x24 barrels out of the box; the Energetic 1/2x28, 5/8x24, 9/16x24, 11/16x24 and M14x1 LH direct-thread adapters cover other threads, and any 1.375x24 HUB quick-detach mount works. End caps: 7.62 wipe cap included; 5.56 flat, 5.56 flash hider and 7.62 flash hider sold separately.
Buying a suppressor from Guns 2 Ammo
Suppressors are NFA items and are serial-number tracked. Order online or in store, then complete your transfer at our Mesa shop, either as a registered eForm 4 or same day on a Form 4473. Buy it from us and there is no transfer fee. We explain both options, fees and timelines on our NFA & Class III page.
Outside Arizona? We can ship to your local SOT dealer to complete the transfer. Not available in CA, DC, DE, HI, IL, MA, NJ, NY or RI.
Questions? Call (602) 715-2677.
| Manufacturer | Energetic Armament |
| Model | Vox K2 |
| Caliber | 30 Cal / 7.62mm |
| Type | Silencer |
| Finish | Nitride |
| Material | Maraging Steel |
| Size/Length | 4.9" |
| Item Weight | 10.4 oz |
| Diameter | 1.55" |
| Mount Type | 5/8x24 Direct Thread / 1.375x24 Universal |