Enhance the performance and capacity of your S&W M&P Shield 9mm with the Samson Magazine Extension. This +1 extension not only increases your magazine capacity but also improves functionality by aiding in clearing malfunctions. Engineered for reliability it is designed to drop free without interference and features a contoured leading edge for smooth one-handed reloads. The ergonomic finger groove adds comfort and control while relief cuts make it easier to extract the magazine during malfunctions. Made from durable aluminum with a black hardcoat anodized finish this extension uses the factory magazine spring to ensure consistent feeding. Compatible with M&P Shield 9 and M&P Shield 9 M2.0 models it combines practicality and performance in a sleek design.