Viper P4 Full Cut Helmet System

Kit Includes
  • Viper P4 Full Cut Helmet Shell
  • 1 NVG Hole
  • Modular Suspension System
  • Front Mount
  • Interlocking Long Rails
  • Hardware Kit

Note: Purchaser Eligibility - Learn More

Note: Military and Tactical discounts available off MSRP. Click Here for more information

Note: After placing an order, Customer Service will contact you to confirm your lead time—expected time for shipment is 11 weeks. Contact for more information.

Premium Combat Helmet

Viper P4 Full Cut Helmet System

Revision has modernized the traditional advanced combat helmet: The Viper P4 system is up to 24% lighter than the legacy U.S. Army ACH and represents the first significant advancement in ACH technology in 15 years.


B3 Technology™

Revision’s advanced UHMWPE helmets meet stringent quality standards and exceed U.S. military specifications for ballistic threats, blunt impact, and blast fragmentation


Advanced composite shell technology combines elite protection, extended-use comfort, and impressive weight reduction

Custom Modular

Customize the Viper Head System for the mission at hand: The Viper helmet is the foundation for a suite of integrated, modular components, including front mounts, rail systems, ballistic visors, mandible guards, and tailored liner options

Enhanced Ballistics

Exactingly designed and precision manufactured with advanced, cutting-edge materials, Revision's head systems provide the best high-impact ballistic protection in the industry, exceeding numerous U.S. and international protection standards

Viper Shape

Viper helmet shells feature a streamlined, modernized, cutting-edge design inspired by the U.S. Army Advanced Combat Helmet


Sizes, Dimensions and Colors
Sizes Available
  • Small
  • Medium
  • Large
  • Extra Large
  • System Weight (Medium - including helmet, MSS and hardware): 1140 g
Color Options
  • Black, Olive Green, Foliage Green, Desert Tan, Tan 499
  1. Viper MPAS
  2. Cobra MPAS
  3. Caiman accessories
  4. Viper Helmet Covers
  5. Helmet Storage Bag
  6. NVG Shock Cord
Testing & Requirements
  • 17gr FSP V50 Average 2400 fps / 730 m/s and meets all other ACH level fragmentation requirements
  • 17gr FSP V50 >2400 fps / 730 m/s tested to STANAG 2920
  • 9mm RTP, 124gr FMJ-RN, 427 m/s (1400 fps) with low deformation (<25mm in clay)
  • Ballistic protection according to the U.S. Army's AR/PD 14-01
  • Stops NIJ IIIA level threats


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