The Defiance HPS HPS 4GSK Cal .45ACP Suppressor has been carefully engineered to deliver outstanding durability, accuracy, and sound reduction. Your HPS Suppressor is constructed of T6 Aluminum with a Type III Mil-Spec Black Hard Anodize coating and tool steel with a QPQ coating at the threaded end, giving it a tough, scratch-resistant layer that also prevents corrosion.The HPS incorporates an internal baffle system which is CNC machined from high grade aluminum and steel alloys and consists of two steel and three aluminum baffles strategically stacked to minimize sound and maximize suppressor service life. Defiance suppressors are proudly distributed by KRISS USA, Inc.

The Defiance HPS 4GSK Cal .45ACP is designed for use with the KRISS Vector family of firearms and is compatible with all M16x1 LH threaded, .45ACP models (SMG, SBR, and SDP).

Defiance suppressors are hearing safe and reduce sound levels below OSHA and MIL-STD- 1474D standards for use of hearing protection. Levels of suppression may vary depending on the type of ammunition used.