Discover the timeless reliability of the CMMG AR-15 A1 Receiver Extension and Stock Kit, a must-have for enthusiasts building or upgrading classic AR-15 rifles. This complete kit delivers an authentic A1 fixed stock configuration, blending vintage aesthetics with modern durability to enhance your firearm's performance and handling. Perfect for retro builds or those seeking a stable, no-fuss stock setup, it ensures smooth cycling and precise control during range sessions or tactical applications. Key Features Classic A1 Fixed Buttstock: Crafted from high-strength polymers for lightweight yet robust construction, this fixed stock provides a consistent length of pull without the complexity of adjustable systems. Rear Storage Compartment: Convenient trapdoor access allows you to store cleaning tools, batteries, or small essentials right where you need them, solving the common issue of cluttered gear during field use. Integrated Sling Mount: Built-in loop ensures secure attachment of slings, improving portability and quick transitions for shooters on the move. Complete Rifle Buffer System: Includes everything required for a seamless installation, eliminating the hassle of sourcing individual components and ensuring reliable operation. No Foam-Filled Core: Optimized design reduces weight while maintaining structural integrity, offering a balance of comfort and functionality for extended shooting. Specifications Weight: 32 oz - Lightweight for maneuverability without sacrificing stability. Length: 10.25 inches - Ideal for standard AR-15 ergonomics. Width: 1.7 inches Height: 5 inches Buffer Tube: CMMG A1 rifle-length receiver extension, mil-spec compatible. Buffer: AR-15 rifle buffer for smooth recoil management. Spring: AR-15 rifle action spring for consistent cycling. Material: High-strength polymer stock with anodized aluminum buffer tube. Why Choose This Product For AR-15 builders tired of unreliable aftermarket parts or mismatched components, the CMMG A1 Kit stands out by providing a factory-direct solution backed by a Lifetime Quality Guarantee. Its fixed design minimizes wobble and play common in collapsible stocks, delivering enhanced accuracy and recoil absorption for better shot placement. Whether you're assembling a vintage-inspired rifle or retrofitting an existing lower, this kit addresses key pain points like buffer compatibility and stock durability, ensuring your build performs flawlessly under demanding conditions. Customers appreciate its straightforward installation and authentic feel, making it a top choice for tactical enthusiasts and collectors alike. Elevate your AR-15 with the proven performance of the CMMG AR-15 A1 Receiver Extension and Stock Kit. Secure yours now to experience the difference in quality and reliability that only CMMG can deliver.