This is a POM O-ring nozzle made by Lonex. It's designed to fit the MP5-A4/A5/SD5/SD6 and has a slightly tapered end. The O-ring stops air from leaking between the cylinder head and nozzle. Since stock nozzles don't have O-rings this can increase FPS quite a lot depending on how much air is leaking. Since this doesn't put any more stress on the motor this won't affect your rate of fire like a stiffer spring or spring spacer.
Material: POM (Polyoxymethylene)
Tip type: Slight Taper
This product was added to our catalog on Wednesday 14 March, 2012.