The Weaver Thumbnut Riser Rail (brand part no. 48372) turns a flat-top AR-15 or M16 into a fully optics-ready platform, giving shooters plenty of options when setting eye relief for a scope or red dot. Weaver machines this riser from aircraft-grade 6061-T6 aluminum and finishes it in a durable matte black, engineering it to provide the optimal mounting height for a wide range of optic and ring combinations. Its multiple-slot design and thumbnut mounting let you reposition or remove the rail without tools, which is useful for shooters who swap optics between range trips.

Key Specifications

• Machined from aircraft-grade 6061-T6 aluminum for durability.
• Finished in matte black for a low-glare profile.
• Features a multiple-slot design for flexible eye relief positioning.
• Uses thumbnut mounting for tool-free installation and removal.
• Fits flat-top AR-15 and M16 receivers.

Frequently Asked Questions

Do I need tools to install this? No, the thumbnut mounting allows tool-free installation.

What rifles does this fit? Flat-top AR-15 and M16 receivers.

What is it made from? Aircraft-grade 6061-T6 aluminum with a matte black finish.

Buy the Weaver Thumbnut Riser Rail

This tool-free riser rail gives you flexible eye relief options on any flat-top AR-15 or M16. Browse more from Weaver in our scope accessories collection, shipped fast from our Lubbock, Texas shop.