Fusion Engine™ Drop-In Kit - Blemished MODEL:V2 GEN3 (M4/M16) - Red Low-Flow Poppet / Red Nozzle The included Delrin spacer extends

The included Delrin spacer extends the front of the engine so that it will be the correct length to match up to the hop-up chamber while the included Nut provides an anchoring point for the stock bolt

this adapter is designed to work with Milspec (Real Steel) receiver end plates so you can configure the gun with your preferred sling plate

48% poly fleece*

28g This system was primarily designed to deliver maximum power so air efficiency was not a critical part of its development

JACK™ does boast some highly respectable figures in this category

Fusion Engine™ Drop-In Kit - Blemished MODEL:V2 GEN3 (M4/M16) - Red Low-Flow Poppet / Red Nozzle The included Delrin spacer extendsWe have a limited number of blemished Fusion Engine V2s available at a substantial discount. During each production run there are always some parts which do not pass QC inspections. In some cases these parts are dimensionally out of tolerance and unusable so they are scrapped for recycling. In other cases the parts are completely functional but have minor defects in "Class A" surfaces. These blemished systems are factory new but built with one or more