Shop › REAL AVID SMART-FIT AR15 VISE BLOCK REAL AVID SMART-FIT AR15 VISE BLOCK $39.99 Real Avid Smart Fit, Vise Block, Gray Nylon, Designed for AR15 Lowers, Features Magazine Lock and Adjustment Handle AVAR15SFVB Quantity: Add To Cart Added! Real Avid Smart Fit, Vise Block, Gray Nylon, Designed for AR15 Lowers, Features Magazine Lock and Adjustment Handle AVAR15SFVB