The Colt Spring Pin For Colt M4 is a small but critical factory replacement part designed specifically for AR-15 pattern rifles. Built to original Colt specifications, this spring pin helps maintain proper alignment and secure retention of associated components, supporting reliable function over long-term use.

This pin is ideal for owners who want to keep their Colt M4 or compatible AR-15 running with genuine parts rather than generic substitutes. Whether you are refreshing worn components or keeping spares on hand for maintenance, using an authentic Colt spring pin helps preserve the rifle’s original feel and performance. It is well suited for routine range use, training, and general rifle upkeep, reflecting Colt’s long-standing reputation for dependable, purpose-built firearm parts.

• Manufacturer: Colt
• Model: Spring Pin For Colt M4
• Firearm Type: AR-15