Century Arms EOS-556 Suppressor 5.56 | SU0021011N

The Century Arms EOS-556 is a compact, K-length suppressor optimized for 5.56 gas-operated rifles. It uses additive manufacturing and is offered in a configuration noted for low weight and low flash, and it ships with a 1/2″x28 direct-thread titanium mount that is HUB compatible. The design emphasizes reduced back pressure and durability for extended use in training and competition environments.

Typical applications for the EOS-556 include range training and precision/practical rifle competition where reduced report, low flash, and minimized gas blowback improve shooter comfort and follow-up shot performance.

Product Specifications

• The manufacturer is Century Arms.
• The model is EOS-556.
• The manufacturer part number is SU0021011N.
• The caliber is listed as 5.56.
• The thread pattern is 1/2″x28.
• The construction material is listed as Inconel 718 in the product attributes and descriptions.
• The finish is described as Matte Black.
• The suppressor weight is listed as 12.5oz.
• The product is described as HUB Compatible.
• The package includes a Titanium 1/2″x28 direct-thread mount.
• The design features an integrated flash hider.
• The design emphasizes a low back pressure profile.
• The product is described as having class-leading suppression in its category.
• The listing states the unit passes SOCOM stress testing for durability.
• The UPC is 787450990913.

The EOS-556 presents a compact, lightweight option for shooters who need a durable suppressor with low flash and reduced back pressure. Its HUB compatibility and included titanium direct-thread mount make it adaptable to a variety of 5.56 hosts, and the combination of additive manufacturing with high-temperature alloy construction is intended to deliver long service life under demanding use.