SGE 400/3 GAS MASK / Filter Size:Med/Reg 5mm jack converts these muffs

5mm jack converts these muffs into hearing-protected headphones — plug in a phone

If you need maximum range extension

The 10 NV brightness settings let you dial the reticle intensity to match whatever tube you're running

This Personal Retention Lanyard is designed to act as a personal lanyard when operating from helos

Holographic Technology — This is not a red dot

SGE 400/3 GAS MASK / Filter Size:Med/Reg 5mm jack converts these muffsFull face NBC CBRN protection from Mestel Safety. The SGE 400 3 gas mask features a soft silicone face seal, ballistic rated polycarbonate visor, and three 40mm NATO filter ports (left, right, center) so you can mount the filter wherever works best for your situationincluding optimal positioning for rifle shouldering. Includes one sealed NBC filter. EN136: 1998 certified. Made in Italy by Mestel Safety, a leader in military and first responder