Brownells Delrin Ring Reducer, 1'' To 7/8''
The Brownells Delrin Ring Reducer, 1" To 7/8" is a simple, practical solution for mounting optics that don't quite fit your existing scope rings. If you've got a quality set of 1-inch rings on a rifle but want to mount a 7/8-inch scope—or you're mixing and matching gear from different builds—these reducers let you make it work without buying new rings. Made from Delrin, a tough polymer that won't mar or scratch your optic, they're designed to be gentle on your glass while providing a secure fit.
Installation is straightforward: the rings are split in half, so they drop right onto your existing ring set with no complicated machining or permanent modifications. The matte black finish blends in without adding visual clutter to your setup. Whether you're working with standard hunting rings, tactical setups, or rings from any major manufacturer, these adapters work with virtually all common ring styles on the market.
This is the kind of unassuming accessory that solves a real problem—especially useful if you're building multiple rifles, swapping optics between platforms, or inheriting used glass that doesn't match your current ring diameter. It's sold as a matched pair (front and rear), so you've got everything you need in one package.
Key Features
- Delrin material won't damage or mar optic tubes
- Matte black finish won't interfere with sight picture or scope aesthetics
- Split-ring design allows simple drop-on installation without tools or modifications
- Compatible with most standard scope ring brands and styles
- Sold as front-and-rear pair for complete optic mounting solution
Frequently Asked Questions
Will these reducers work with my scope rings?
Yes, these reducers are designed to work with virtually any brand of standard scope rings in the sizes specified. The split-ring design means they can be fitted onto your existing rings without modifications.
Do I need both front and rear reducers?
This kit includes both front and rear reducers, so you have a matched pair for a complete mounting solution on your scope.
Will the Delrin reduce holding strength or stability?
The Delrin serves as an adapter sleeve and won't compromise the clamping force of your rings—it's simply a spacer to bridge the size difference between your 1-inch rings and 7/8-inch optic tube.
What if I want to go back to my original setup?
The split-ring design and non-permanent installation mean you can remove the reducers at any time and return to your original ring configuration with no lasting effects.

