Arsenal Inc. Buttstock left-side folding polymer 4.5mm pivot pin replacement for metal BLACK Arsenal Inc. - AK-LSFB

Upgrade your AK rifle with the Arsenal Inc. left-side folding polymer buttstock featuring a precision 4.5mm pivot pin. Designed as a direct replacement for traditional metal stocks on stamped receivers, this Warsaw-length assembly delivers superior ergonomics and compact storage without sacrificing durability or performance.

Key Features

• Left-side folding mechanism with slick hinge that accepts a 4.5mm pivot pin for reliable, smooth operation
• High-strength polymer construction in matte black finish for reduced weight and corrosion resistance
• Integrated scope rail recess for mounting optics directly on the stock
• Smooth-turning sling swivel and ribbed metal butt plate with cleaning kit trap door
• Buttstock catch release button for quick deployment and secure locking
• US-made by Arsenal Inc. for stamped-receiver AK platforms

Technical Specifications

• Length: Warsaw pact dimensions for classic AK profile
• Compatibility: Stamped receivers (fitting may be required on non-mil-spec variants)
• Color: Black
• Pivot pin: 4.5mm (sold separately as KR-001PP)
• Additional items: Cleaning kit sold separately

Why Choose This Product

Traditional metal triangle folders add unnecessary weight and can rattle over time. This polymer replacement solves those issues with a lightweight yet robust design that maintains the iconic folding functionality while improving balance and reducing fatigue during extended use. The 4.5mm pivot ensures a precise fit on compatible stamped receivers, making it ideal for tactical, range, or home-defense setups where compactness matters.

Whether you’re converting a fixed stock or refreshing an older folder, this Arsenal assembly provides OEM-quality engineering trusted by professionals and enthusiasts alike.

Enhance your rifle’s modularity and handling—experience the difference of genuine Arsenal craftsmanship today.