Silencerco Rimfire Thread Spacer 1/2x28 TPI Available to order on-line. Ships in 5-14 days $19.00 MSRP Price: $17.90 Description Details Reviews Shipping info Thread spacer made by SilencerCo. Shortens thread area while maintaining concentricity Machined steel Black oxide finish UPC: 817272010497Manufacturer: SilencercoModel: ACC114Category: PartsOtherStock: Ships in 5-14 business days.Unit/Measure: ea This item may be shipped directly to your home address, unless you live in a restricted state.