{"id":30656,"date":"2026-10-12T07:58:45","date_gmt":"2026-10-12T12:58:45","guid":{"rendered":"https:\/\/surplused.com\/index.php\/2026\/10\/12\/m1e4-origins-of-the-m14-gas-expansion-cutoff-system\/"},"modified":"2026-10-12T07:58:45","modified_gmt":"2026-10-12T12:58:45","slug":"m1e4-origins-of-the-m14-gas-expansion-cutoff-system","status":"publish","type":"post","link":"https:\/\/surplused.com\/index.php\/2026\/10\/12\/m1e4-origins-of-the-m14-gas-expansion-cutoff-system\/","title":{"rendered":"M1E4: Origins of the M14 Gas Expansion\/Cutoff System"},"content":{"rendered":"<div class=\"mejs-video-container\"><iframe loading=\"lazy\" allow=\"autoplay\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/B41AX5Hv5Uc?controls=1\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>The E-series Garands were a series of prototypes made at Springfield Armory to test all sorts of different changes to the basic rifle design, from flash hiders to folding stocks. The M1E4 is a design that uses a new gas system developed by J.C. White in the 1930s, and adapted to the M1 by Earle Harvey (better known for his later work on the T25 rifle designed to replace the M1 after the war) in 1941. The was intended to remove the dog-leg bend from the operating rod to improve manufacturing efficiency. It is a gas expansion and cutoff system, and it was tested at Aberdeen in 1943.  <\/p>\n<p>The M1E4 did not pass initial testing, but the system was revisited in 1944 with some improvements as the M1E9. It is tested in 1945, but the war ends before development can be fully finished. However, Earle Harvey used the system in his T25, and it was also used in the T44 &#8211; which became the M14. The M1E4 here is the origin of the M14 (and M60) gas system.<\/p>\n<p>Thanks to the Springfield Armory National Historic Site for giving me access to this truly unique specimen from their reference collection to film for you! Don&#8217;t miss the chance to visit the museum there if you have a day free in Springfield, Massachusetts:<br \/><a href=\"https:\/\/www.nps.gov\/spar\/index.htm\" target=\"_blank\">https:\/\/www.nps.gov\/spar\/index.htm<\/a><\/p>\n<p>JC White Gas-Operated Prototype: <a href=\"https:\/\/youtu.be\/rXAmnoMR2aI\" target=\"_blank\">https:\/\/youtu.be\/rXAmnoMR2aI<\/a><br \/>JC White Prototype LMG: <a href=\"https:\/\/youtu.be\/ZHR_kDlEUrw\" target=\"_blank\">https:\/\/youtu.be\/ZHR_kDlEUrw<\/a><br \/>JC White Prototype Toggle-Locked Rifle: <a href=\"https:\/\/youtu.be\/I6o4TW36dBc\" target=\"_blank\">https:\/\/youtu.be\/I6o4TW36dBc<\/a><\/p>\n<p>The best firearms reference books: <a href=\"https:\/\/www.headstamppublishing.com\" target=\"_blank\">https:\/\/www.headstamppublishing.com<\/a><\/p>\n<p><a href=\"http:\/\/www.patreon.com\/ForgottenWeapons\" target=\"_blank\">http:\/\/www.patreon.com\/ForgottenWeapons<\/a><br \/><a href=\"http:\/\/www.floatplane.com\/channel\/ForgottenWeapons\" target=\"_blank\">http:\/\/www.floatplane.com\/channel\/ForgottenWeapons<\/a><\/p>\n<p>Cool Forgotten Weapons merch! <a href=\"http:\/\/shop.forgottenweapons.com\" target=\"_blank\">http:\/\/shop.forgottenweapons.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The E-series Garands were a series of prototypes made at Springfield Armory to test all sorts of different changes to the basic rifle design, from flash hiders to folding stocks. The M1E4 is a design that uses a new gas system developed by J.C. White in the 1930s, and adapted to the M1 by Earle&hellip;&nbsp;<a href=\"https:\/\/surplused.com\/index.php\/2026\/10\/12\/m1e4-origins-of-the-m14-gas-expansion-cutoff-system\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">M1E4: Origins of the M14 Gas Expansion\/Cutoff System<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":30657,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[89,19],"tags":[],"class_list":["post-30656","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-content","category-video"],"_links":{"self":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/posts\/30656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/comments?post=30656"}],"version-history":[{"count":0,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/posts\/30656\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media\/30657"}],"wp:attachment":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media?parent=30656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/categories?post=30656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/tags?post=30656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}