King Arms AK Hop-Up Chamber (POM)

King Arms AK Hop-Up Chamber (POM) This One-Piece Chamber Set is more durable and accurate in feeding BB Improves Firmness of the chamber & stabilizes the muzzle velocity O-Ring Sealed Design to Improve Air-Seal Re-Designed Hop Up System prevent loosening Includes all parts needed for installation Require expert on installing into stock AEG As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed