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Field Ballistic Calculations Simplified! The Field Density Altitude Compensator (FDAC) is a highly advanced and incredibly simple tool designed by two former active duty Marine Corps Scout Snipers to provide rapid accurate external ballistic calculations in the field with no batteries! The FDAC efficiently performs the most essential functions of a highly complex battery powered ballistic computer in a fail-proof analog tool that can be used in absolutely any environment. We designed this tool to be simple, reliable, and incredibly accurate across a broad spectrum of calibers, barrel lengths, muzzle velocities, and optical heights. The extensive design and testing phase of the FDAC consumed over 20,000 rounds of .308 ammunition and two man years. Now your velocity, temperature and altitude...ballistic solution done! It just works... hands down.

• Trajectory and windage solutions equal to modern ballistic computers
• Non-tech! No batteries, extremely durable, incredibly small and lightweight
• Firing solutions for a wide range of density attitude (-3,000’ to +10,000’)
• Extremely accurate density altitude calculation table
• All firing solutions are based on the modern G7 drag model
• User adjustable muzzle velocity
• Marked sound barrier crossing for extreme range targets
• Designed for use with all MOA and MRAD adjusting optics

Below is the anticipated shipment fulfilment schedule for any purchase you make today. These estimates do not include actual shipping time to your location. You will receive an email confirmation when your order ships along with tracking information. If you have any questions about the status of your order, contact customer service at 434-296-8600 x998.

- Chassis Orders: 4-6 weeks
- Rifles: 8-12 weeks
- Optic Products: 1-4 weeks
- Ammunition: 5 business days
- Bipods & Tripods: 5 business days
- Most Accessories: 5 business days
- Other Items: 5 business days

We do maintain inventory on many items including chassis & rifles. If your shipping time is going to be different than indicated above, you will be informed of such by email.