The MAC-5K Pistol from SDS Imports is a modern take on the classic roller delayed blowback design, now available in 9MM caliber. This pistol boasts a 4140 steel barrel with a 5.8" length and button rifling for improved accuracy. The grip module is made of reinforced polymer with a glass-filled construction for added durability. The trigger pull is approximately 4.25lbs, making it suitable for a variety of shooting applications. The finish features a laquer paint over manganese phosphate coating for corrosion resistance. Fast shipping ensures you'll be able to get your hands on this pistol quickly. With its HK claw mount compatibility and adjustable rear sight, this pistol is perfect for those who want a high-performance firearm without breaking the bank. Key Benefits and Features: Caliber: 9MM Barrel: 4140 steel, 5.8" Grip Module: Reinforced polymer, glass-filled Trigger Pull: Approximately 4.25lbs Finish: Laquer paint over manganese phosphate coating Front Sight: Hooded front post, elevation adjustable Rear Sight: Castle style rear, adjustable