Tyrant CNC Springfield Echelon +5 Magazine Extension - The Tyrant CNC Magazine Extension, or also known as base pads, are expertly designed to increase the ammunition capacity of Springfield Armory Echelon's 15 and 17-round magazines by an additional 5 rounds of 9mm. This enhancement is crucial for users seeking increased capacity without compromising the firearm's reliability and performance. Each Springfield Armory Echelon magazine extension is CNC machined from T6061 aerospace-grade aluminum, a material chosen for its optimal balance of strength and lightweight properties. This level of precision in machining ensures a perfect fit and function with the Springfield Echelon models. The finishing process involves bead blasting followed by a hardcoat anodize, providing not only a durable surface resistant to wear and tear but also an aesthetic appeal. This finish is consistent with the high-quality standards set by Tyrant CNC and complements the overall look of the firearm. A standout feature of the Tyrant Designs Echelon magazine extension is its tool-less installation and removal capability, a significant advancement over other market options that often require tools and are prone to disassembly upon impact. This design aspect emphasizes ease of use and maintenance, appealing to a wide range of users. The proprietary 'NoBak'plunger technology is a critical component, ensuring the base pad/magazine extension remains securely attached, even when subjected to drops from heights exceeding 10 feet with a fully loaded magazine. This feature provides users with confidence in the product's reliability under various conditions. Accompanied by a 10 percent power spring (110 percent stronger than OEM with an additional coil), this Springfield Echelon magazine extension is engineered to guarantee the consistent delivery of the final round and maintain slide hold-back after the last round is fired. This attention to detail in spring design enhances the overall functionality of the firearm. Tyrant CNC base pads are not only designed for increased capacity and reliability but also for practical handling. The solid top and bottom ledges facilitate quick and efficient magazine changes, beneficial in fast-paced situations or when handling is compromised. This feature also aids in the removal of stuck magazines, showcasing the product's user-centric design. In line with the Tyrant CNC's commitment to quality and aesthetics, the magazine extension's design harmonizes with the rest of the Tyrant CNC line for the Springfield Armory Echelon. This consistency ensures that users can give their firearms a cohesive and customized appearance without sacrificing functionality. The Tyrant CNC Magazine Extension for the Springfield Armory Echelon is an exemplary product, combining advanced engineering, user-friendly features, and a robust design. It stands as a testament to Tyrant CNC's dedication to providing high-quality, reliable, and aesthetically pleasing solutions for firearm enthusiasts and professionals. Features Made in the USA ; Fits on 17-round Echelon Magazine; Fits in 4.0c (compact) 15-round magazine; The 20-round Echelon Magazine is just a 17-round magazine with an OEM extender of 3 rounds; Does not fit the 10-round magazine; Does not fit on full size 15-round magazine; Not Compatible with Floyd's Magwell;