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the Mini SFR's output pressure
this build is Tried and True carbine with a stubby stock
Available in almost any color
Founded in 2007
14mm barrel threads
Polarstar FCU - Fire Control Unit, Rev. 3, Universal Condition:New the Mini SFR's output pressureAn FCU (Fire Control Unit) is needed for all Polarstar rifles with the acception of the Polarstar Kythera. If buying this with a Polarstar rifle from KA Tech Airsoft it will come pre tuned for that specific rifle. If your buying this as a solo product and you would like it tuned for your rifle please fill out the contact form or leave a comment giving the following details, the more specific the better Which Polarstar Engine Ex. Polarstar Jack Hopup
