Coiled mainspring Fits Beeman S1 air rifle For professional installation only. Mainsprings can break or lose their ability to flex back to their full, original length, resulting in reduced velocity. If that's what happened to your Beeman S1 air rifle, this is the correct replacement spring to bring it back to full power.
Air Venturi
Air Venturi Mainspring, Fits Beeman S1 Air Rifle
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Beeman Mainspring, Fits Weihrauch HW30, Beeman R7, Marksman 28 Air Rifles
MSRP:
$27.49
$23.64
