Split Rear Rail System for Polymer80™ Double Stack Frames

Upgrade your Polymer80™ build with the Split Rear Rail System — the ultimate solution for improving fitment, alignment, and trigger performance on your double-stack 9mm P80™ frame. Designed to deliver superior quality and unmatched value, this patent-pending rail system ensures a smoother build experience and a refined final product without the need for extra filing, grinding, or tuning.

The two-piece design improves alignment between the frame, rails, and trigger housing, making installation easier and more precise. Engineered with a dedicated connector clearance cutout, these rails eliminate the “mush” common with other rear rail systems, ensuring your trigger maintains a crisp and consistent feel.

Key Features

• Drop-In Installation: Patent-pending split design makes rail alignment and pin installation fast and simple.
• Optimized Trigger Feel: Connector clearance cutout eliminates interference for a cleaner, more consistent trigger pull.
• Precision Machined: CNC tolerances exceed the tightest MIM or stamping processes for perfect fit and function.
• Durable Stainless Steel: Machined from premium stainless steel billet for long-lasting performance and strength.
• Enhanced Build Quality: Designed to improve fitment across frame, trigger housing, and rails, resulting in a smoother build experience.

Compatibility

Compatible with Polymer80™ PF940v2 (Full-Size), PF940C (Compact), PF940SC (Sub-Compact), and PF940CL (Hybrid) frames, as well as Strike80 frames.

Details

Each rail set is precisely milled from premium stainless steel billet and thoroughly inspected with coordinate measuring machines (CMM) to ensure dimensional accuracy. The result is a rock-solid, high-performance rail system that improves reliability, enhances trigger feel, and makes installation more forgiving — all while maintaining the strength and durability demanded by serious builders.

Patent Pending

Compliance Notice

This product is subject to state and local restrictions. It cannot be shipped to: Colorado, Connecticut, Hawaii, Illinois, Maryland, New Jersey, New York, Oregon, Rhode Island, Washington, Washington D.C., or the City of Philadelphia, PA. Always check and comply with all federal, state, and local laws before purchasing or installing firearm components.