Magpul Dynamics Precision Rifle Data Book 2.0
Magpul Dynamics Precision Rifle Data Book 2.0, The Magpul Core(TM) Precision Rifle Data Book 2.0 uses a simplified density altitude-based, color-coded chart to record your rifles' data across a wide spectrum of shooting conditions. Using a rugged, all weather material that can be written on using map pens, pencils, and non-permanent markers, this data book was designed to perform in austere conditions. Recorded data can also be erased with alcohol-based substances so the book can be reused.