Airsoft Mutation BSS CNC Delrin Cylinder Head for V2/V3 AEG

Retaining Compound (Loctite 638) is still required to keep the stem in place. Bronze Switchable Shaft Cylinder Head Unlike other aluminum cylinder heads, the preinstalled pad is extremely durable. Machining quality on these cylinder heads surpass all other brands tested and the nozzle section is incredibly smooth which reduces nozzle O-ring wear and leads to the nozzle returning to battery very quickly for consistent fps in high rps builds.  5.41mm ±0.01mm OD stemFor superior nozzle fitment - Begone wobbly nozzles and air leaks Bronze (Proprietary heat treated alloy) stemOffers exceedingly low friction while having significantly more abrasion resistance than aluminum. It will not gall unlike aluminum and steel stems. CNC Delrin main bodyFor increased gearbox durability and reduced noise. Design ensures it will not crack under high loads unlike other Polymer Cylinder heads. Integrated NBR padFor high abrasion resistance, low compression set and low deadzone. Pad acts as its own O-ri