This One-Piece Metal Chamber Set is more durable and accurate in feeding BB
Improves Firmness of the chamber & stabilizes the muzzle velocity
Re-Designed Hop Up System prevent loosening
Includes all parts needed for installation
Require expert on installing into stock
As always, upgrading AEG require necessary skill & technique to disassemble the gearbox, consult expertise if needed
Weight(gram) : 38