








KAC upper SD
This was a collaborative effort with shelton precision.
Standard flat top milled down 75 % brass def and forward assist. Pin hole welded and re milled. Tumbled and blasted with a hard coat. Effort to clean up further for a more uniform coloring.
A perfect upper for your next KAC build. More info and pics to come.
This was a collaborative effort with shelton precision.
Standard flat top milled down 75 % brass def and forward assist. Pin hole welded and re milled. Tumbled and blasted with a hard coat. Effort to clean up further for a more uniform coloring.
A perfect upper for your next KAC build. More info and pics to come.
This was a collaborative effort with shelton precision.
Standard flat top milled down 75 % brass def and forward assist. Pin hole welded and re milled. Tumbled and blasted with a hard coat. Effort to clean up further for a more uniform coloring.
A perfect upper for your next KAC build. More info and pics to come.
The Story Behind Our KAC SD Clone Upper Project
- We're excited to share the KAC SD clone upper by Shelton Precision, a special collaboration that took real knowledge and passion for military clones.
- It started with the goal to make the most faithful KAC upper receiver clone on the market, and every detail shows just how much care went into it.
- From the KAC upper with hard coat finish to the precise pinhole welding and remilling, this upper receiver has the feel and look that serious collectors and shooters love.
What Makes Our KAC Upper SD Stand Out?
- Standard flat top design – precision milled, keeping that original Knights Armament style.
- About 75% brass deflector and forward assist milled down for an authentic retro look.
- Pinhole welded and re-milled for extra strength and correct vintage details.
- Carefully tumbled, blasted, and given a hard coat finish for lasting color and protection.
- A collaborative effort with Shelton Precision for true-to-original specs.
- Attention to a more uniform and classic coloring, making each piece look right at home with vintage parts.
Knights Armament Style Meets Modern Performance
- Compatible with any standard AR-15 lower.
- Ideal choice for retro KAC upper assembly enthusiasts.
- Works well with modern accessories and classic clone furniture.
Built For Authentic Clone Builds
- We start with a flat top upper, then mill, weld, tumble, and finish to capture the genuine KAC look.
- Features a KAC style upper with brass deflector for historical accuracy.
- Includes a strong KAC upper with forward assist so your rifle functions just like the real thing.
The Shelton Precision Difference
- Has pinholes that have been expertly welded and re-milled for perfect fit and period-correct visuals.
- Is tumbled to smooth out sharp edges and blasted for the best surface finish.
- Gets coated with a tough, authentic KAC upper with hard coat finish, ensuring your rifle lasts and stays looking sharp.
Elevate Your Arsenal With Our KAC Upper Receivers
- All uppers made with trusted materials and strict quality control.
- Each KAC upper for AR-15 builds is inspected before shipping.
- Helpful support from enthusiasts who care about your build.
- Fast, safe shipping to your door.
Key Features Of The KAC Upper SD
- True KAC flat top upper receiver look and feel.
- 75% milled brass deflector and forward assist give your build that classic vintage style.
- Pinhole welding and careful finishing mean extra durability.
- A tough, uniform hard coat protects and provides that classic look.
- It's made to fit perfectly with any retro KAC upper assembly or modern build.
- Crafted together with Shelton Precision for quality you can always count on.
How To Use Your KAC SD Clone Upper
- Attach the KAC upper with forward assist to any standard AR-15 lower.
- Add your choice of parts for a complete retro build or a modern classic hybrid.
- Enjoy smooth operation, great looks, and strong performance.
Designed For Collectors, Shooters, And Builders
- Clone builders appreciate it for real retro KAC upper assembly accuracy.
- Shooters love it for reliable performance every time.
- Collectors enjoy having something rare and truly original.
Order Your KAC SD Upper Today
- Retro Arms is proud to offer the very best in KAC SD clone upper options, built by us and Shelton Precision.
- We know what collectors and shooters need, and we promise top-notch quality, great service, and fast shipping every time.
- Pick up your new KAC upper receiver clone now and add that perfect Knights Armament style to your next project!