Elevate your MP1522's performance with this Enhanced Black Stainless Steel Bolt Kit. Crafted for the discerning professional this semi-auto safety selector offers precision and reliability. Featuring a reversible throw safety center you can choose between 90 and 60-degree short-throw options to match your shooting style. Its modular design ensures easy customization with interchangeable levers for both left and right-handed users. Constructed from durable stainless steel this bolt kit combines functionality with robust strength making it a top choice for those seeking a no-nonsense upgrade.