The part was installed on a highly upgraded (though stock looking) Smart Parts ION. Installation involved using a strap wrench to un-screw the feedneck that was in the marker, cleaning the threads, and installing the new feedneck. To ensure that the part didn't come unscrewed from the ION's body, we used a small amount of "blue" Loc-tite (242) to seal the threads in place.
Critical Paintball claims their feedneck to be 30% lighter than anyone else's feedneck, and given the aggressive milling on the part to remove excess material, we believe it. The inside of the feedneck is knurled to allow the part to grip more firmly to the loader when it's installed. The Critical Paintball Feedneck uses a 'cam-lock' lever to open and close the feedneck. It's adjustable to accommodate various loaders via a nut on the backside of the cam-lock lever to tighten or loosen the feedneck as needed to allow the hopper to fit properly. Close the cam-lock lever on the feedneck, and your loader is locked in place.
On the field, the feedneck performed perfectly, holding a variety of loaders in place with ease. The loader was tested with a DraxXus Pulse, Empire Reloader B, and VL Vlocity loaders, all of which mated up well with the feedneck. In no case did the loader come out of the feedneck once installed, even during rigorous sessions with the front players on the team.
Priced with an MSRP of $39.95, the Critical Ion/Impulse Feedneck is priced competitively with other brands out there. It's only currently available for the Impulse/ION, and only in gloss black, but we're told that new colors and model availability are coming soon from Critical Paintball.