This is two sets of o-rings, three smaller for a looser fit and 3 larger for a tighter fit (6 total) for your bolt. Using a bolt with o-rings can result in a quieter shot and greater efficiency. This set allows you to pick the best o-rings to match your gun for the smoothest pump stroke but while keeping the best efficiency possible.

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Aura Ascent II O-Ring Set
MSRP:
Was:
Now:
$9.99

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