Product Description Maxim Ammunition raises the bar in short barrel ballistic performance with the MXM49002, a 5.56 NATO 70-grain TUI (Tumble Upon Impact) round engineered specifically as Short Barrel Ammunition (SBA). Built around a precision Solid Copper Spun projectile, this round initiates a tumbling action upon impact to maximize energy transfer and terminal effectiveness. Whether deployed in a compact AR pistol, a short barrel rifle, or a tactical carbine, this ammunition is optimized to perform where standard loads fall short. The lead-free copper construction ensures consistent performance shot after shot, making it a smart choice for home defense, law enforcement, and serious tactical users who demand reliable, high-performing 5.56 NATO ammunition from a trusted name in the industry. Product Highlights Tumble Upon Impact (TUI) Technology: The solid copper spun projectile tumbles immediately upon impact, delivering devastating energy transfer and superior terminal performance. Short Barrel Ammunition (SBA): Specially formulated to achieve optimal velocity and consistent ballistics from short barrel rifles and AR pistol platforms. Solid Copper Spun Projectile: Lead-free, precision-machined copper bullet provides repeatable, controlled performance without fragmentation concerns. 5.56 NATO Compatibility: Chambered for 5.56 NATO, offering broad compatibility across standard AR-platform rifles and carbines. 20 Rounds Per Box: Packed in a rugged 20-round box, ideal for tactical stockpiling, range testing, or duty carry applications. Specs Brand: Maxim Caliber: 5.56 NATO Bullet Weight: 70 Grain Bullet Type: TUI (Tumble Upon Impact) - Solid Copper Spun Application: Short Barrel Ammunition (SBA) Rounds Per Box: 20 Manufacturer Part Number (MPN): MXM49002 UPC: 680017490027 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>