The AR10 Bolt Catch Assembly Kit with Plunger, Spring & Screw Parts Kit is a crucial component for your AR-10 rifle. This kit includes all the necessary parts for your bolt catch assembly, ensuring smooth and reliable operation. The plunger, spring, and screw are made of high-quality materials to guarantee durability and long-lasting performance. Easy to install, this kit will help you maintain and optimize the functionality of your AR-10 rifle. Upgrade your firearm with the AR10 Bolt Catch Assembly Kit with Plunger, Spring & Screw Parts Kit, a must-have in the AR-10 Parts category.