MAGAZINE EXTENSION FOR SMITH & WESSON M&P 1.0/2.0 At the core of Tyrant CNC's +5 magazine extension for the S&W M&P lies the groundbreaking NoBak Spring Plunger Technology. It isn't just jargon; it's the culmination of intricate design, trial, and rigorous testing. With an eye on ensuring a secure attachment method, this technology allows easy assembly/disassembly without jeopardizing the attachment mechanism. Whether at the range or in a tactical scenario, their extension promises consistent reliability - a defining trait when you're looking to add 5 rounds of capacity for the M&P 1.0 2.0 full-size pistols. Enhanced Grip with Serrated Mfg: Tyrant Cnc