Product Description The Harris Engineering Round Head Flange Nut (No. 2A) is a precision-crafted adapter engineered to enable the secure mounting of Harris bipods onto plastic or hollow forends. Finished in a durable matte black, this 5/8-inch round head flange nut is compatible with a wide range of rifles, most notably the Ruger M77 RP MK II with its plastic stock configuration. Manufactured in the USA, this compact yet essential accessory delivers a reliable attachment point for shooters who need bipod functionality on firearms equipped with plastic forends. Harris Engineering&';s reputation for quality ensures this adapter meets the demands of competitive shooters, hunters, and tactical users alike. Product Highlights Specifically designed to mount Harris bipods to plastic and hollow forends, including the Ruger M77 RP MK II 5/8-inch round head flange nut design provides a rock-solid, stable bipod attachment point Matte black finish offers a low-profile, corrosion-resistant appearance that blends with most rifle stocks Made in the USA by Harris Engineering, a globally recognized leader in rifle bipod accessories Lightweight construction at approximately 1 oz, adding virtually no noticeable weight to your firearm Specs Brand: Harris Engineering MPN: HARNO2A UPC: 051156000239 Color: Black Size: 5/8-inch Round Head Flange Nut Material: Plastic / Metal Country of Origin: USA Weight: 0.0625 lbs (1 oz) Compatible Firearms: Ruger M77 RP MK II plastic stock and similar platforms Application: Mounting bipods to plastic or hollow forends Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.