Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is Heckler & Koch/Vollmer Manufacturing HK 21 Conv from HK91 SN#: A047072. Mfg. Listed on form 4 is