SilencerCo AC87 Delta O-Ring Pack 22 Sparrow Rubber Black 4 Per Pack

The SilencerCo AC87 Delta O-Ring Pack is the factory replacement seal kit for SilencerCo Delta-mount rimfire suppressors, including the .22 Sparrow, Spectre II, and Warlock. Each pack contains four Viton rubber O-rings in black - two size #13 and two size #18 - to keep your suppressor properly sealed and aligned during disassembly.

Manufactured to SilencerCo's factory specifications from durable Viton rubber, these O-rings provide excellent resistance to heat, solvents, and the byproducts of rimfire suppression. Routine replacement of the front and rear seals helps maintain correct indexing of the suppressor module on the host barrel and ensures consistent takedown over time.

Each package includes 4 O-rings (2x #13 and 2x #18), giving you a complete service set for a full refresh of your rimfire suppressor.