The Sharps Heatseeker is an innovative, affordable chassis system for your bolt action rifle, allowing you to easily upgrade a traditional factory rifle stock for improved versatility and a sleek, modern appearance. This sub 2 lb chassis is machined from billet high-strength 6061-T6 aluminum and includes a 10 ounce, 14" handguard cut from a unique extrusion shape exclusive to Sharps Bros. Both the chassis body and the handguard are finished in a matte black Cerakote. The handguard features M-LOK slots on 4 sides for various attachment options and two quick disconnect fittings per side for sling attachment. Add your pistol grip and stock of choice with the Heatseeker's standard AR-15 grip and AR buffer interface. With Heatseeker you can easily and affordably convert your bolt action rifle into an enhanced magazine fed system. Heatseeker's sleek contemporary design will completely transform the look of your rifle, with no need to visit a gunsmith: simplified instructions and functionality make installation a breeze. Heatseeker is compatible with AICS short action magazines from Magpul and Accuracy International. This offering is for the Ruger American Ranch (calibers: 5.56/223, 300 blackout, 7.62x39, 6.5 Grendel, 350 Legend & 450 Bushmaster).