Radian Weapons R0077 Takedown Pin Set AR-15 Black Steel

The Radian Weapons R0077 Takedown Pin Set eliminates the frustration of lost detents and springs during AR-15 maintenance. This precision-machined set includes both front pivot and rear takedown pins with captive springs and detents that stay attached to the pins during disassembly.

What Makes This Different

Unlike standard mil-spec pins that launch detents across the room, the R0077 features captive detent systems that remain secured to each pin. The precision-machined steel construction provides consistent lockup with zero play between upper and lower receivers. Each pin maintains proper tension through thousands of cycles while eliminating the common problem of lost small parts during field stripping.

Key Features

• Captive spring and detent system prevents loss of small parts
• Precision-machined 4140 steel construction with black nitride finish
• Drop-in replacement for mil-spec AR-15/M16 lower receivers
• Maintains proper upper/lower receiver tension and alignment
• Eliminates need for punch tools during disassembly
• Includes both front pivot pin and rear takedown pin
• Compatible with standard .154" pin holes

Field stripping becomes a simple one-handed operation without worrying about detent trajectory or spring compression. The captive system works reliably in adverse conditions where dirt and debris might interfere with loose detents. Competition shooters and tactical users appreciate the consistent lockup that maintains zero shift between barrel changes or cleaning cycles.

Technical Specs

• Material: 4140 steel with black nitride finish
• Pin diameter: .154 inches (standard mil-spec)
• Compatibility: AR-15, M16, and compatible lower receivers
• Package includes: Front pivot pin, rear takedown pin, captive springs and detents
• Installation: Drop-in replacement, no gunsmithing required
• Finish: Corrosion-resistant black nitride coating
• Made in USA

The R0077 represents a practical upgrade that solves a common maintenance headache without compromising reliability. Professional armorers and home builders alike benefit from the time savings and reduced parts inventory requirements this system provides.