The Cross Armory CRPP Pin Pal Mil-Spec 223 Rem/5.56x45mm NATO AR15, M4 4140 Steel is a purpose-built front takedown pin replacement designed to reduce wear at the forward pivot point of AR-platform rifles. Machined from durable 4140 ordnance steel and finished in black melonite, it combines a locking nut and lubricated captive bearing to deliver a smooth, repeatable interface without permanently altering the host firearm.

This Pin Pal system installs easily on standard AR-15 and M4 configurations, providing a more robust pin solution for regular range use, training, and general rifle maintenance. The Mil-Spec captive bearing is engineered from porous metal with increased iron content for strength and resistance to shock loads, helping maintain consistent receiver alignment over time. Cross Armory’s attention to detail and commitment to practical innovation make the Pin Pal a reliable upgrade for shooters seeking long-term durability in a critical wear area.

Key Features:

• Manufacturer: Cross Armory
• Model: Pin Pal
• Caliber: 223 Remington/5.56 NATO
• Type: Pin Replacement
• Material: 4140 Steel
• Finish: Black Melonite
• Firearm Fit: AR15, M4