The WMD Buffer Tube Carbine NIB-X Silver is a high-quality receiver extension designed for M4-style adjustable carbine buttstocks. Constructed from durable 7075 aluminum, this mil-spec buffer tube features a lightweight design and is coated with NiB-X nickel boron for enhanced corrosion resistance and smooth operation. With six adjustable positions, it allows for customizable length of pull, making it ideal for various shooting applications. Whether you're building an AR-15 or upgrading your current setup, this buffer tube provides the reliability and performance you need in the field. Intended Use: AR-15 builds and tactical applications. Key Benefits: Lightweight and durable construction ensures long-lasting performance. Key Features: - Mil-spec carbine buffer tube - NiB-X nickel boron coated for corrosion resistance - Six adjustable positions for customized length of pull - Compatible with M4-style adjustable buttstocks Summary: Upgrade your AR-15 with the WMD Buffer Tube Carbine NIB-X Silver, offering reliable performance and versatility for any shooting scenario.