Batteries operate from -40° F to 140° F

Both styles of screws are included with each Mark 4 base

we've incorporated ultra-durable Delrin inserts to protect the muzzle of your rifle or shotgun from unexpected impacts or scrapes under rigorous range conditions

full grain leather

Weaver #19 Base Serge Boulard Inc. Batteries operate from -40° FProduct Features Each Weaver base is machined to tight tolerances for a custom fit. These Aluminum bases offer maximum strength for rings to hold tight. * Item Not Exactly As Pictured * Refer to Weaver Base Chart at www. weaveroptics. com To Insure Correct Base To Fit Your Firearm.