TY - DATA AU - Krouse,William J. ED - Library of Congress. TI - Gun control: 3D-printed AR-15 lower receivers T2 - IN PY - 2018///- CY - [Washington, D.C.] PB - Congressional Research Service KW - AR-15 rifle KW - Gun control KW - United States KW - Firearms KW - Law and legislation KW - Three-dimensional printing N1 - The CRS web page provides access to all versions published since 2018 in accordance with P.L. 115-141; GPO Cataloging Record Distribution Program (CRDP) UR - https://purl.fdlp.gov/GPO/gpo141383 ER -