The Primary Weapons Systems (PWS) MK111 Pro is a premium firearm designed for exceptional performance and versatility. Chambered in 5.56 NATO, it features an 11.85-inch barrel, making it ideal for close-quarters and mid-range engagements. The rifle employs a long-stroke piston operating system, renowned for its reliability and reduced maintenance requirements compared to direct impingement systems. The MK111 Pro is equipped with a free-floating M-LOK handguard, allowing for easy attachment of accessories and improved accuracy. The PicMod rail system offers a blend of Picatinny and M-LOK slots, providing flexibility for mounting optics and other attachments. The fully ambidextrous lower receiver caters to both left and right-handed users, enhancing operational ease. Additionally, the rifle features a high-quality trigger for a smooth, crisp pull, ensuring precision shooting. Built with durability and performance in mind, the PWS MK111 Pro is suitable for tactical scenarios, competitive shooting, and personal defense.