Spikes Tactical SFT50M4 M4 Stripped Upper Receiver Multi-Caliber

Description

The Spikes Tactical SFT50M4 is a flat-top, stripped M4 upper receiver for AR rifle builds and upgrades. Its forged 7075-T6 aluminum construction, black Type III hardcoat anodized finish, and installed forward assist and ejection port door provide a solid foundation for completing a compatible upper assembly.

Key Specifications

• Its stripped configuration lets builders select the remaining upper components for their project.
• The flat-top receiver provides an optic-ready top surface.
• Forged 7075-T6 aluminum construction keeps the receiver suited to rifle builds.
• The black Type III hardcoat anodized finish adds a durable surface treatment.
• Multi-caliber designation supports compatible build configurations.
• The receiver weighs 8.5 ounces for a lightweight upper component.
• An installed forward assist is included, reducing the number of components needed for assembly.
• An installed ejection port door, spring, and rod are included.
• The receiver has no sights and is described as optic ready.

This upper receiver is intended for builders who need an M4-pattern foundation with key components already installed while leaving the barrel, handguard, gas system, charging handle, muzzle device, and bolt carrier group to be selected separately.