New design valve rod O-rings eliminate having to cold fire your impact to get up to target speed.
unlike the original FX O-ring which drags on the valve rod like a windshield wiper on a dry windshield for example.
new size and compounds eliminate any drag resulting in consistent shot counts from 1st to last
complete O-ring kit comes with all O-rings needed to install the valve rod O-rings
END THE COLD SHOT PROBLEM ACCU-SHOT O-RINGS
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