Product Description HK USA HK416/MR556 5.56mm 20rd Magazine Steel HK USA HK416/MR556 5.56mm 20rd Magazine Steel at KYGUNCO Browse all KYGUNCO deals $72.45 In Stock at KYGUNCO Price checked 12 days ago Buy Now at KYGUNCO Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Hk Usa Hk Usa