The Aim Sports Complete AR-15 Build Kit gives you the parts to assemble a 5.56x45mm NATO AR-15 upper from the ground up. It ships new in box with a 16-inch barrel and a hard coat anodized black finish, and includes the standard components needed to complete the upper assembly. 
 

Key Specifications 

• Manufacturer: Aim Sports Inc 
• Model: Complete AR-15 Build Kit 
• Type: Uppers 
• Caliber: 5.56x45mm NATO 
• Barrel Length: 16 inches 
• Finish Color: Black (Hard Coat Anodize) 
• Condition: New in Box 
• Included Accessories: Standard components 
   

Features 

The 16-inch barrel hits a practical middle ground between maneuverability and ballistic performance. Hard coat anodizing resists wear and corrosion. The kit covers the upper assembly, so you can source or retain your preferred lower separately. 
 

Usage 

The caliber and barrel length work across home defense, sport shooting, and small game hunting. Because everything ships as a kit, first-time builders can follow standard AR assembly guides without hunting down individual components, and experienced shooters can spec their lower to taste.

Users discussing the Aim Sports AR-15 Build Kit (16" barrel, 5.56 NATO) generally land in similar territory across a few consistent themes.

On quality and value, most find the components solid for the price, calling it a reasonable starting point for a first AR build without heavy spending. A minority note that some parts feel lighter-duty compared to higher-end alternatives.

Assembly comes up often. The kit is straightforward enough that beginners can work through it without much trouble, and forum threads tend to accumulate useful tips from people who have already done the build.

Performance feedback is mostly positive -- accuracy and reliability meet expectations for a budget-tier upper, though a handful of users mention minor adjustments or part swaps after initial use to dial things in.

The black finish gets no complaints. Some builders swap it out for custom options, but most leave it alone.

Customer support and parts availability draw mixed reviews. A few users report slow or unresponsive service, and sourcing specific replacement components can be hit or miss depending on inventory.