This is a Noveske Flash Suppressor known as the KX5 chambered in 762NATO, model 5000520.
The Noveske KX5 Flash Suppressor will work on any barrel length. All KX5s are individually serial numbered for quality control and come with a crush washer for timing purposes. New slim design allows installation under the Noveske Handguard.
Features:
5/8X24 Thread pitch
Black Nitride finish
Heat-treated CM construction
