Model: REVISION BATLSKIN BALLISTIC MANDIBLE GUARD Materials: Ultra-high-molecular-weight polyethylene (UHMWPE) Level of Protection (17 gr FPS, V50) MIL-STD 662F: 670 m/sec Level of Protection (Ballistic) NIJ 0106.01: 3A CO-PD 05-04: ≤ 16, 25.4 mm BFD Weight (Size L):  2.5 kg Visor - Level of protection (17 gr FPS, V50) MIL-STD 662F: 240 m/sec Chin - Level of protection (17 gr FPS, V50) MIL-STD 662F: 620 m/sec Options (Included): IR Adapter and piccatinny rails