For: Modify M4/M16 AEG Air NozzleProduct Information:
Decent seal (better than no o-ring) and well made. Would like to comment that I've noticed this is actually a bit longer than standard M4 air nozzles and may not work in the M249 or some M4s. In those cases you will need to test, shave down the air nozzle, and re-test until your AEG feeds.
Also DO NOT USE CRAPPY CHINESE CYLINDER HEADS WITH WARPED TOP PIECES! YOU WILL CRACK YOUR NOZZLES ON YOUR HOP UP UNIT!
-Has an o-ring
-Provides a good seal
-A bit longer than many other M4 air nozzles
-Not a complaint, but no other brand can match the deepfire air nozzles' massive o-rings that provide stellar compression