Ultradyne UD Chassis 1.0 Lbs Weight Pair Black. 5 LBS Forearm Weights are sold in pairs and are designed to be added to the UD3 UD5 and UD7 Chassis systems to help balance the firearm for improved shooting performance. These weights can be attached to the forearm of the chassis providing added weight and stability to the firearm. This can help improve accuracy and reduce recoil making for a more enjoyable shooting experience. Specifications for Ultradyne UD Chassis: Manufacturer: Ultradyne Color: Black Finish: Nitride Fabric/Material: Steel Length: 3.13 in Last Chance: Yes Package Contents: Ultradyne UD Chassis Ultradyne UD20025: UD Chassis 1.0 Lbs Weight Pair Black