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 1lb” 3 ounce 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 MLOK slots on 4 sides for various attachment options and two quick disconnect fittings per side for sling attachment. Add your grip and stock of choice with Heatseekers standard AR15 grip and AR buffer interface.This offering is for the Ruger American Short Action (calibers: 308 WIN, 6.5 Creedmoor). With Heatseeker you can easily and affordably convert your Ruger American short action into an enhanced magazine fed system. Heatseekers sleek contemporary design will completely transform the look of your rifle, with no need to visit a gunsmith: our simplified instructions and functionality makes installation a breeze. This Heatseeker model for the Ruger American is compatible with AICS short action magazines from Magpul and Accuracy International.