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All ATF regulations apply.

Each state’s laws dictate what can or cannot be possessed in its own state. Some counties within each state hold different laws as well. Please contact your local ATF field office with any ATF related questions or concerns you may have. Noveske Rifleworks LLC reserves the right to use discretion when selling to each individual state.

Prop 65 Warning
Prop. 65 Warning for CA Residents WARNING:

This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

The SCI-SIX is a centerfire rifle silencer intended for use on semiautomatic and automatic 5.56x45mm host weapons, with no barrel length restrictions.  The silencer mounts to the host firearm with a flash hider mount that left hand threads to the silencer body. It has a 1.64 inch primary diameter and is 6.5 inches long with the mount installed. The main silencer body is constructed from 718 Inconel using additive manufacturing (DMLS 3D printing). The silencer weighs 17 ounces and with the included flash hider mount, the total system weight is 19.6 ounces.  The included mount adds 1.125 inches.

Additional information

Weight 1.5 lbs
Dimensions 9 × 3 × 3 in