The Aim Sports AR5CUB5 Complete Build Kit 5.56x45mm NATO 16" Aluminum Black Hard Coat Anodized Receiver for AR-15 gives builders a ready-to-assemble upper and matching lower components in one cohesive package. Centered around a 16" 5.56x45mm NATO chrome moly vanadium barrel and black hard coat anodized aluminum receiver, this kit is designed to deliver dependable semi-auto performance with familiar AR-15 ergonomics.

Ideal for shooters who want to understand their rifle from the inside out, this kit includes the complete upper, bolt carrier group, charging handle, A2 pistol grip, 6-position collapsible carbine stock, buffer tube, spring, and small parts needed to finish a stripped lower. The mid-length gas system and mil-spec construction make it well suited for range use, training, and general-purpose sport shooting, while Aim Sports’ focus on practical design and solid materials provides a trustworthy foundation for your next AR-15 build.

Key Features:

• Manufacturer: Aim Sports
• Model: AR5CUB5 Complete Build Kit
• Caliber: 5.56x45mm NATO / .223 Rem
• Action: Semi-Auto
• Barrel Length: 16"
• Stock: 6-Position Collapsible Carbine
• Receiver Material: Aluminum, Black Hard Coat Anodized
• Barrel Material: 4150 Chrome Moly Vanadium Steel
• Platform: AR-15