• Jun 27, 2026 jcad m4a1 technical manual ght reduction. The key components utilize: - Aluminum Alloy Receivers: Anodized for corrosion resistance and lightweight strength. - Polymer Handguards and Stock: Designed for ergonomic comfort and impact absorption. - Steel Barrel and Bolt Carrier Group: Hardened to withstand high BY Ms. Krystina Waelchi II