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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
Gearbox: ARC V2 Centaur Split Gearbox w/ Quick Change Spring
6-position retractable stock
load and unload it a few times until BB's feed smoothly
Easy to Install -Featuring a dedicated fixed-mount for Picatinny rails
Mechlabs Nexxus SA Engine piston Gearbox: ARC V2 Centaur SplitMechlabs brings you the Nexxus series engine for the M4 AR15 platform. The Nexxus is a full mechanical engine capable of firing in Sem Automatic and Full automatic with flip of the selector. No need for batteries just hook up your HPA tank and you are ready to rock. It also boasts an Ultra Fast trigger pull and is very efficent on air up to 3000+ shots with a full 48 4500 tank. The Nexxus engine comes ready to attach to your external HPA regulator set
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