The Energetic Armament Big Sixy is a 6mm centerfire suppressor printed from Inconel 718, the nickel superalloy used in jet-engine turbine blades, and it is the only can in the line with a hexagonal body. The six flat faces are not styling: they add surface area so the can sheds heat faster between strings, and they give you a 1.65-inch flat-to-flat purchase for a wrench. At 14.7 oz and 6.7 inches it is full-auto rated on 6mm ARC, 5.56 NATO, 5.45x39 and 5.7x28, and rated for 6 PRC. This is the Graphite black high-temp Cerakote high-temperature Cerakote version.
The muzzle end is recessed with textured, angled surfaces that scatter flash and break up sound at the exit, with flash-hider prongs built in, so there is nothing to add. Additive manufacturing lets the baffles use internal shapes that could not be machined, tuned for flow, heat, sound and weight at once. Rear thread is the 1.375x24 HUB; no mount is included, and Energetic recommends its Project E tapered mount. 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
- DMLS-printed Inconel 718, 14.7 oz, 6.7"
- Hexagonal body: more cooling surface and a built-in wrench flat
- Integrated flash hider and anechoic front face
- Full-auto rated on 6mm ARC, 5.56, 5.45x39 and 5.7x28; 6 PRC rated
- 1.375x24 HUB rear thread (mount sold separately)
- Serial ID Ring and lifetime guarantee, made in the USA, DFAR certified
Specifications
| Caliber | 6mm ARC, 5.56 NATO, 5.45x39, 5.7x28 (full auto), 6 PRC |
|---|---|
| Length | 6.7" |
| Diameter | 1.65" hex flat-to-flat, 1.83" max |
| Weight | 14.7 oz |
| Material | DMLS Inconel 718 |
| Mount | 1.375x24 HUB (mount not included) |
| Finish | Graphite black high-temp Cerakote |
| Blast baffle clearance | 1.80" |
| Full-auto rating | Yes |
| Part number | EA87 |
| UPC | 853406008879 |
In the box
- Big Sixy suppressor
- Instruction manual and decals
Compatibility
No mount is included. Add one of the Energetic 1/2x28, 5/8x24, 9/16x24, 11/16x24 and M14x1 LH direct-thread adapters for a threaded barrel, the Energetic Project E or TB Mount, or any other 1.375x24 HUB quick-detach mount.
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 | Big Sixy |
| Caliber | 5.56 NATO / 223 Rem |
| Type | Silencer |
| Finish | Black Cerakote |
| Material | Inconel 718 |
| Size/Length | 6.7" |
| Item Weight | 14.7 oz |
| Diameter | 1.83" |
| Mount Type | 1-3/8x24 HUB |