Cleaning and spare parts kit for B3 and B4 air guns. CLEANING ITEMS: Gun oil 1 bottle, Rigle Bar 1 set, Barrel Rifle Brush & Flannel Brush 1 set. PARTS LIST: 1 Piston Spring, 1 Keeper, 2 Air Room Ring, 1 Operation Arm Cartridge, 1 Sear Spring Availability: Usually ships the same business day. Air Gun Cleaning Kit QF2Regular price: $16.99Sale price: $12.99 Copyright 2001-2011 Police Equipment Fire Rescue Supply at wholesale price.