The Ultradyne Muzzle Device Collar is a replacement collar for muzzle devices without a Dynamount accessory such as the C4 Dynamount Front Sight.

Specifications and Feature:
Precision CNC Machined 416 Stainless Steel
Ultra Rugged Salt Bath Nirtirde Finish
Made in the USA
Black

Fits: .223/5.56mm and PCC 9mm Ultradyne Muzzle Devices