Budget Ballistic Helmet (ACH High Cut Mod Guide)

1/4 Trim https://www.mcmaster.com/products/851... 3/8 Trim https://www.mcmaster.com/products/851... 1/16" Drill bit for shroud pilot hole, followed by a 1/8" bit. #ballisticprotection #militarysurplus #ach 🇺🇸