Delta 4™ Ballistic Helmet
Product Features
More about Colors / Materials / Finishes
  • ModelD4T
  • SKU
  • Part

Designed For

Helmets icon
Tactical icon
NIJ Tested icon
NIJ Tested
Type IIIA icon

Delta 4™ Ballistic Helmet

The patriarch of PROTECH® Tactical’s line of ballistic helmets, the Delta 4™ is a traditional ACH style helmet known for its durability, performance and overall ballistic protection [NIJ 0106.01 compliant and modified to address higher type IIIA rounds and velocities].

The Delta 4 (bolted) is the most accommodating ballistic helmet offered by PROTECH, as it is compatible with all available retention systems and optional accessories.


  • NIJ 0106.01 Tested, Modified to address Type IIIA rounds & velocities
  • V50 ≥ 2058 fps (627 mps), 17 gr.
  • Bolted Variant (see Delta 4 Boltless product page for other options)
  • Available in Full-, Mid- and High-Cut
  • Compatible with the following optional accessories: Rail Set, NVG Shroud, Bungee Set, VELCRO® Brand Kit and TCI Communication Systems