The Sons of Liberty Gun Works Enhanced Blaster Guts lower parts kit delivers quality components perfect for your next build competition or defense setup. This complete kit includes premium B5 Pistol Grip and Liberty Fighting Trigger for enhanced performance.Sons of Liberty Gun Works Enhanced Blaster Guts Lower Parts KitB5 Pistol Grip for improved ergonomicsLiberty Fighting Trigger for enhanced performanceMil-Spec Safety selectorComplete takedown pins and assemblyMagazine catch and assemblyBuffer retainer pin and springBolt catch and assemblyAll small parts are engineered to fit most mil-spec firearms making this kit ideal for AR-15 builds upgrades or replacements from a trusted manufacturer known for quality firearms components.