SpeedQB AtomPack Modular Backpack Features Durable nylon construction Structured padding throughout to protect your HPA bottle from impact Equipped with a HPA bottle retention sleeve Built-in dual silicon HPA line ports HPA line channel guides on all straps Air mesh padding for breathable ventilation and comfort "MagStash" rear pocket Upper and lower main compartment access Waterproof zippers with heavy duty nylon zipper pulls ITW Nexus GTSR buckles Rubberized PALS on the side panels for MOLLE accessories The SpeedQB AtomPacK (APK) is a modular, multi-configuration backpack designed for Airsofters who run HPA (High Pressure Air) systems. Ergonomically designed to move with your body, not against it. The APK comes with everything you need to deploy in 3 different modes:Chest Rig ModeAPK connects to the Nucleus Chest Rig (sold separately) to create a HPA carry and Ammo Retention system.Crossbody Bandolier ModeErgonomic, crossbody configuration for quick access to the main compartments.Standalone Backpack ModeTraditional backpack with 2 shoulder straps, adjustable chest H-strap, and air mesh padded lumbar/oblique support. Manufacturer: SpeedQB Note: The AtomPacK is designed for HPA bottles 45ci - 68ci and is compatible with most new-generation "mini" regulators. The APK is directly compatible with the Atom Plate Carrier [APC] using the APK to APC Adapter
