Upper handguard fixedly mounted on barrel assembly by breechblock guide rods
United States Patent 3380183
Inventors:
Arthur, Miller
Dorchester, Charles H.
Sullivan, George C.
Publication Date:
04/30/1968
International Classes:
F41A3/26; F41A3/66; F41A3/82; F41A11/00; F41A17/38; F41A19/02; F41A19/46; F41C7/00; F41A3/00; F41A17/00; F41A19/00