Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: ukarms l96 spring powered bolt action fps-310 sniper rifle airsoft gun airsoft rifle quality airsoft gun(Airsoft Gun)
Product description: Package Includes: P96 Sniper Rifle Airsoft Gun Rifle Magazine Mock Scope Bi-Pod Instructions Sample Bag of 6mm BB's
Product feature: Spring Powered Strong Sturdy ABS Plastic Construction Type: Bolt Action (Single Shot), Upper & Lower RIS Mock Scope, Long One Piece Aluminum Barrel Velocity (FPS): 310, Length: 37.75" Removable Bi-Pod Removable Magazine, Package Includes: P96 Sniper Rifle Airsoft Gun Rifle Magazine Mock Scope Bi-Pod Instructions Sample Bag of 6mm BB's
Product brand: M16 Airsoft Guns
Target attributes: Velocity
Answer: attribute: velocity
value: None
source: None