The Luth-AR Heavy Car Buffer Assembly is a carbine recoil buffer designed for .223/5.56 H1 carbine configurations. It contains one tungsten slug and two steel slugs for a combined weight of 4 oz. The heavier buffer is intended to improve reliable function in AR-15 style rifles with mid-length or shorter gas systems and may also reduce felt recoil. This buffer is a simple component swap for builds where increased buffer mass is desired.
Key Specifications
- The manufacturer is Luth-AR.
- The model name is the Heavy Car Buffer Assembly.
- Designed for .223/5.56 carbine use.
- The buffer contains a total weight of 4 oz.
- Internal composition includes 1 tungsten slug and 2 steel slugs.
- Intended fitment is for AR Rifles.
- The listed product type is Buffer.
- This part is categorized under Stocks & Buffer Tubes.
- Designed to help improve reliable function with mid-length or shorter gas systems.
- Users may notice a reduction in felt recoil.
Durable and straightforward, the Luth-AR Heavy Car Buffer Assembly offers a practical approach to refining the cycling characteristics of .223/5.56 carbine builds. Its mixed-metal slug design provides added mass in a compact package, making it suitable for shooters seeking smoother operation in mid-length and shorter gas systems without altering other components.





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