UTG FLR002: Proudly Designed and Made in USA True Ambidextrous Lower with Left and Right Side Bolt Catch, Bolt Release, and Magazine Release Mirrored Battery of Arms, Manipulation of All Ambi. Controls is Nearly Identical in Positioning and Usage Precision Machined from 7075-T6 Billet and Finished in Type III Class II Matte Black Hard Coat Anodize Optional Upper to Lower Tensioning Screw Included Overall Lightweight with Dehorned Corners and Melted Contours Multi-Caliber Marked and Compatible with Most Mil-spec and Aftermarket Components Integral Oversized Trigger Guard and Ambi. Trigger Finger Indexes Accommodate Small, Medium, and Large Hands Shortened and Flared Magwell Cleans up Reloads and Ensures Compatibility with Most if Not All High-Capacity Magazines and Drums. Buffer and Rear Takedown Pin Detent and Spring Remain Captured After Removal of Receiver End Plate and Extension Tube Threaded Steel Hardware Included with Ambi. Bolt Catch, Bolt Release, and Magazine Release Preinstalled