Elevate your firearm's performance with the Nighthawk Custom Mainspring Housing. Designed for government models, this flat mainspring housing features a checkered 25 LPI texture, ensuring a secure grip during use. Crafted from stainless steel, it not only enhances durability but also adds a sleek, polished look to your firearm. Fully machined for precision, the SP0228 model guarantees a perfect fit and reliable function. Upgrade your handgun with this essential component for improved handling and aesthetics. Perfect for both competitive shooters and enthusiasts alike!