UTG PRO AR Pistol 4" Free Float Quad Rail System

Features: Proudly Designed and Made in USA 4" Free Float Quad Rails for AR15 Pistol Compatible with Both Gas Tube and Adams Piston System Slim Profile and Ultra Lightweight Design Solid Aircraft Aluminum Construction with Hard Anodizing Precision Machined and Torture Tested for Max Durability Un-impeded Top Rail Platform Consistent with Flat Top Rails Complete with Universal QD Swivel Housing Includes 4PCs Rail Covers Note: Note: This model works with standard AR15 upper receiver. It may not be compatible with any re-designed, oversized upper receiver. Specifications: Material: Aluminum Weight: 6.8 oz Pieces: 1 Rail Type: Picatinny/Weaver No. of Rails: 4 Length: 4.2 inch Width: 2.1 inch Height: 2.4 inch