Real life personal equipment in Metal Gear Solid 4

Blades

 * Machete

Weapon Accessories

 * EO Tech Holographic Weapon Sight 552
 * Surefire M961 Millennium Universal Weaponlight
 * Aimpoint

Old Snake/Militia PMC's.

 * Blackwater Gear Universal Holster
 * HSGI High Speed Low Drag Suspenders
 * BHI Commando Recon Chest Harness (w/back panel)
 * Blackwater Gear Modular Thigh Panel
 * BHI Tactical Rappelling Harness

Praying Mantis

 * Eagle CIRAS
 * Safariland 6004
 * DBT BattleLab Backpack/Assaulters Accessory Belt
 * PCU Level 5 Soft Shell Trouser
 * DBT FAPC (w/cummerbund)

Communication Equipment

 * AN/PRC-148 MBITR
 * Comtac II
 * H-250/U Handset

Other

 * iPod