The Phase 5 Weapon Systems LPSN15 M-LOK Free Float Quad Rail brings the proven Lo-Pro Slope Nose design to a full-length 15 inch AR-15 handguard. Machined from lightweight aluminum with extensive lightening cuts and an extended top rail, it offers a rigid, sleek profile that keeps weight down while providing generous mounting space for modern accessories. The M-LOK interface along the sides and bottom gives shooters flexible attachment options without adding bulk.

This 15 inch handguard is ideal for rifles built around longer barrels where maximum sight radius, accessory space, and heat dissipation are priorities. It suits range use, training, and competition builds that demand a comfortable, low-profile rail with clean lines and smooth, de-burred edges. Built-in QD sling mounts with internal stops simplify sling setup, and the included steel barrel nut and mounting hardware help ensure a solid installation. The design reflects Phase 5 Weapon Systems’ focus on precise machining, thoughtful ergonomics, and dependable performance.

Key Features:

• Manufacturer: Phase 5 Weapon Systems
• Model: Lo-Pro Slope Nose LPSN15 M-LOK
• Product Type: AR-15 Handguard
• Attachment System: M-LOK
• Length: 15"
• Color: Black
• Accessories Included: Steel barrel nut and mounting hardware
• Special Features: Free float design, built-in QD mounts with internal stops, extended top rail