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Product spec sheet

IMI Defense™ FSR – M16 Front Sight Rail Mount for AR15 / M4 Rifles

SKU SHOPIFY-11058581373201 · imidefenseusa.shop

Specifications

SKUSHOPIFY-11058581373201
ColorBlack | Desert Tan

Description

Upgrade your rifle with the IMI Defense™ FSR Front Sight Rail Mount, a lightweight and durable accessory engineered for M16A1, M16A2, M4, and AR15 platforms. Designed to provide additional mounting capability without permanent firearm modification, the FSR delivers a secure solution for attaching tactical lights, lasers, and other Picatinny-compatible accessories directly to the front sight base.

Constructed from high-quality fiber-reinforced polymer composite, the FSR combines strength, low weight, and field-ready durability. Its precision-engineered angled clamping system ensures a tight and stable fit on forged and milled A2 front sight housings, while dual MIL-STD-1913 Picatinny rail sections provide flexible accessory placement on either side of the sight tower.

Designed for simple installation and dependable retention, the IMI Defense™ FSR Front Sight Rail Mount enhances rifle functionality while maintaining a streamlined profile ideal for tactical, duty, training, and range applications.

Features & Benefits

  • High-strength fiber-reinforced polymer construction
  • Lightweight and highly durable design
  • Dual MIL-STD-1913 Picatinny rail sections
  • 5-slot rail configuration on each side
  • Compatible with standard forged and milled A2 front sight bases
  • Ideal for mounting tactical lights and laser aiming devices
  • Secure clamping system for stable attachment
  • Low-profile design maintains rifle balance and handling
  • Simple installation with 3 M5 screws
  • No permanent firearm modification required
Warranty and support Limited lifetime warranty against defects in materials and workmanship.
Product questions: support@imidefenseusa.com
IMI Defense™ USA September 22, 2026