Andro Corp ACI-15 Partial Lower Features The Andro Corp Industries ACI-15 Partial Lower is machined from aluminum and finished in a black anodized coating that resists wear and corrosion through years of hard use. As a partial M4-pattern lower it comes with the core internal components already installed cutting down significantly on the build time needed to get a custom AR-15 project running. The included A2 grip gives the builder a proven comfortable grip angle right out of the box while leaving the door open to swap in an aftermarket grip later. Because the receiver is built to a multi-caliber specification builders have the flexibility to configure their completed rifle around different chamberings as their project requires. At roughly 16 inches in length and 32 ounces the ACI-15 Partial Lower is sized and weighted consistent with a standard AR-15 pattern lower ensuring compatibility with the wide range of stocks buffer tubes and upper receivers already available on the market. Leaving the stock and upper receiver selection to the builder means the ACI-15 can serve as the foundation for anything from a lightweight carbine to a purpose-built precision rig. Andro Corp Industries designs its lowers for serious shooters who want a dependable base without paying for features they may replace anyway. Builders looking for a solid American-made foundation for their next AR-15 project will find the ACI-15 Partial Lower a practical starting point. Andro Corp ACI-15 Partial Lower Specifications Manufacturer: Andro Corp Model: ACI-15 Caliber: Multi-Cal Firearm Type: AR-15 Grips: A2 Length: 16 Material: Aluminum Color: Black Anodized Weight: 32 oz Available At: GrabAGun