Airsoft Gun AEG Silent Polycarbonate and Aluminum Bore Up Piston Head
The JG Silent Polycarbonate and Aluminum Bore Up Piston Head has a Rubber Bumper to reduce impact noise and is extremely sturdy with durable polymer and aluminum construction. Bore Up Piston Heads are designed specifically for AEG's with barrels longer than 490mm. The Piston Head's design allows it to maximize the volume and compression inside the cylinder. The JG Silent Bore Up Piston Head is a great choice for high powered, high performance AEGs with longer Inner Barrels.  The ball bearings help reduce stress on the spring, which is what makes this Bore Up piston head an essential upgrade when installing an upgraded spring. The rubber bumper greatly reduces the impact noise of piston head to cylinder head contact. The JG Silent Bore Up Piston Head also creates a perfect seal inside the AEG cylinder with wide/ soft O-rings, which increases the consistency of the AEG's FPS.