Ar-15 Hammer / Trigger Pin

Every AR-15 build or repair needs a solid foundation, and that starts with the pins that hold your fire control group in place. This AR-15 Hammer / Trigger Pin set from Miami Shooters Supply is a fundamental, no-fuss component designed for reliable function. Whether you’re assembling a new lower receiver or replacing a lost or worn pin during routine maintenance, this set provides the essential hardware you need. Get your project back on track with these pins and our fast shipping.

Key Features

• Precision machined for a consistent, secure fit in your AR-15 lower receiver.
• Heat-treated for enhanced strength and durability under repeated hammer strikes.
• Simple, drop-in installation requiring no special tools for assembly or replacement.
• Sold as a complete set, providing both the hammer and trigger pin you need.
• Manufactured to mil-spec dimensions for reliable performance and broad compatibility.

Built For

This set is ideal for the home builder completing their first 80% lower or the seasoned shooter performing routine maintenance. It’s a must-have spare part for any AR-15 owner’s toolkit, ensuring you can quickly address a lost or out-of-spec pin that could otherwise render your rifle inoperable.

Specifications

• Material: Heat-Treated Carbon Steel
• Finish: Phosphate Coated for corrosion resistance
• Compatibility: Fits standard MIL-SPEC AR-15/M16/M4 pattern lower receivers
• Includes: One (1) Hammer Pin and One (1) Trigger Pin

FAQ

Are these pins compatible with my polymer lower receiver?
Yes, they are designed to work with standard mil-spec AR-15 lower receivers, which includes most polymer models. Always confirm with your lower receiver’s manufacturer for specific compatibility.

Do I need to use a retention system with these pins?
While these pins will function correctly in a properly machined lower, many users prefer to use a set screw, detent, or anti-walk system to prevent any potential movement during sustained fire, especially in full-auto or binary trigger applications.