The Colt AR15A4 Bolt Catch Plunger is a small but critical factory component engineered to keep your AR-15, M16, or AR-15/M4 running smoothly. This genuine Colt part is precision-machined to work seamlessly within the bolt catch assembly, helping ensure consistent engagement and reliable bolt hold-open performance during shooting and maintenance.

Ideal as a replacement part or for a fresh build, the AR15A4 Bolt Catch Plunger supports dependable operation in a wide range of AR-15 platforms. Its straightforward design allows for easy installation by experienced owners or gunsmiths, making it a practical choice for range rifles, training carbines, and general-purpose AR-15 setups. Backed by Colt’s long-standing reputation for quality firearm components, this plunger helps maintain the reliability and smooth function enthusiasts expect from their rifles.

• Manufacturer: Colt
• Model: AR15A4 Bolt Catch Plunger
• Model Compatibility: AR-15, M16, AR-15/M4
• Firearm Type Compatibility: Colt AR-15 Platforms
• Material: Steel