Product Description The Henry HLPA001 Picatinny Adapter is a precision-engineered mounting solution designed to convert the standard 3/8" factory groove on Henry rimfire rifles into a full Picatinny rail, opening the door to red dot optics and a wide array of modern sighting systems. Finished in a durable gloss black, this adapter features a 0 MOA cant for a perfectly level mounting surface. Specifically designed for Henry H001, H002, and H003 series rifles, it delivers a secure, stable fit without requiring major modifications to your firearm. All necessary mounting hardware is included for a complete and straightforward installation. Please note: Previous production (1st generation) Brass Big Boy guns were drilled and tapped on the barrel under the rear sight and were NOT drilled or tapped on the receiver. For 1st generation H006 Brass Big Boy series rifles, use the BB-CSM mount instead. Beginning in 2011, 2nd generation Brass Big Boy rifles shipped with receivers drilled and tapped for the scope mount, making them fully compatible with this adapter. Product Highlights Converts the 3/8" factory dovetail groove to a standard Picatinny rail, enabling compatibility with red dot optics and a wide range of modern accessories 0 MOA cant delivers a perfectly level mounting surface for precise and consistent optic alignment Engineered specifically for Henry H001, H002, and H003 rimfire rifles for a reliable, purpose-fit installation Gloss black finish provides a sleek, corrosion-resistant surface that complements the classic look of Henry rifles Includes all mounting hardware for a complete, ready-to-install package right out of the box Specs Brand: Henry MPN: HLPA001 UPC: 619835601629 Model: Picatinny Adapter Color: Gloss Black Style: Picatinny Mount Type: 3/8" Dovetail MOA: 0 Firearm Fit: Henry H001 / H002 / H003 Firearm Type: Rimfire Rifle Length: 4.55" Width: 0.84" Height: 0.30" Weight: 0.96 oz Includes: Mounting Hardware 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. ]]>