ECHOCORESector 5.56
6mm / 6.5mm suppressor · HUB 1.375x24 interface · specs and compatibility from the manufacturer
Notable features
- HUB Compatible
- Full-Auto Rated
length
7.06″
weight
18oz
MSRP
$1,045
length
7.06″
weight
18oz
calibers
5.56 | 6.5
material
Inconel
interface
HUB 1.375x24
MSRP
$1,045
- Overall length
- 7.06″
- Diameter
- 1.75″
- Weight
- 18 oz
- Class
- 6mm / 6.5mm
- n
- 98
- Range
- 4.4 oz–23.9 oz
- Median
- 12.45 oz
- Material
- Inconel
- Max caliber
- 6mm ARC
- Base interface
- HUB 1.375x24
- Front cap
- none
- Full-auto rated
- Yes
- MSRP
- $1,045
Heavier than most 6mm / 6.5mm suppressors
Weight compared against the 98 6mm / 6.5mm suppressors in the catalog that publish one. Quartile basis; a value inside the middle half carries no note.
Prices are manufacturer's suggested retail (MSRP). What you pay may differ.
- Base interface
- HUB 1.375x24
- Front cap
- none
The HUB 1.375x24 is an open standard: 415 mounts and 818 muzzle devices in our catalog fit this suppressor, including ECHOCORE Direct Thread Adapter (1/2x28), AAC 51T S.T.A.M.P. Mount and AB Suppressor AB Raptor Adapter. You aren't locked into one manufacturer's parts.
Which ones fit your barrel and host?
Check in the BuilderManufacturer claim
- Caliber: 5.56 NATO / 6ARC
- Restrictions: Full Auto Rated
- At the 2025 Silencer Summit, it earned first place in the 5.56 category based on Shooter’s Ear LEQ dBA measurements, one of the industry’s most respected independent performance benchmarks.
- HUB Compatible (1.375x24 TPI)
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- Reduced Backpressure Helicoidal Baffles
- Low-flash, Vented Endcap
- Optimized For 10.5-inch to 12.5-inch Barrel Lengths
- The EchoCore Sector 556 Full Size has quickly established itself as one of the top-performing suppressors in its class.
- The result confirmed what its design was built to achieve: maximum suppression, superior gas control, and exceptional shooter comfort on modern 5.56 platforms.
- Purpose-built for professional end users who demand maximum suppression and control on 10-inch to 12.5-inch barrel lengths, the Sector 556 Full Size delivers uncompromising performance for 5.56mm/6ARC platforms in a combat-proven, extended-length design.
- Optimized for both standard and short-barreled rifles, it provides exceptional sound reduction, superior flash mitigation, and advanced gas regulation for extended engagements.
- DMLS 3D Printed of Inconel
- Completely Weldless Design
- Treatment: Proprietary High-Temp, Non-Reflective Coating
- Interface: HUB (1.375x24 TPI); 1/2x28 Direct Thread (included)