KAK Industry K-SPEC Enhanced Buffer and Spring Kit Mil-Spec 4.7oz Blue Tip Buffer Olive Drab. With modern technology being applied to firearms you're likely aware of the recoil management solutions that have been applied to many popular pistol operating systems. Many recoil rods in pistols went from a single piece recoil rod assembly to a dual recoil rod spring assembly with compression guide rod. Specifications for KAK Industry K-SPEC Enhanced Buffer and Spring Kit: Manufacturer: KAK Industry Color: Olive Drab Green Finish: Anodized Fabric/Material: Steel Additional Features: Carbine Length Included Accessories: Standard Condition: New Condition Quality: Excellent Condition Details: Other Weight: 4.7 oz Package Contents: KAK Industry K-SPEC Enhanced Buffer and Spring Kit KAK Industry 522-0704-107: K-SPEC Enhanced Buffer and Spring Kit Mil-Spec 4.7oz Blue Tip Buffer Olive Drab