{"id":29488,"date":"2026-05-09T07:38:28","date_gmt":"2026-05-09T12:38:28","guid":{"rendered":"http:\/\/surplused.com\/index.php\/2026\/05\/09\/navy-m1-garand-conversions-to-7-62mm-nato-mk2-mod0-mk2-mod1\/"},"modified":"2026-05-09T07:38:28","modified_gmt":"2026-05-09T12:38:28","slug":"navy-m1-garand-conversions-to-7-62mm-nato-mk2-mod0-mk2-mod1","status":"publish","type":"post","link":"https:\/\/surplused.com\/index.php\/2026\/05\/09\/navy-m1-garand-conversions-to-7-62mm-nato-mk2-mod0-mk2-mod1\/","title":{"rendered":"Navy M1 Garand Conversions to 7.62mm NATO: Mk2 Mod0 &#038; Mk2 Mod1"},"content":{"rendered":"<div class=\"mejs-video-container\"><iframe loading=\"lazy\" allow=\"autoplay\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/nbcMpYO_ZFg?controls=1\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>When the US military adopted 7.62mm NATO, the Army considered converting M1 Garands to the new caliber, and decided it wasn\u2019t worthwhile. For them, Garands in .30-06 were perfectly suitable for training, and a large supply of .30-06 ammunition was still on hand. For the Navy, however, the calculation was different. The Navy knew it was a relatively low priority for new M14 rifles but wanted ammunition commonality with the new standard &#8211; so they decided to convert about 30,000 Garands to 7.62mm NATO.<\/p>\n<p>These conversions were initially don by simply pressing a chamber bushing into place (plus adding a spacer block in the magazine and slightly opening up the gas port). Conversions  were done by American Machine &#038; Foundry (AMF) and Harrington &#038; Richardson (H&#038;R) under the designation Mk2 Mod0. Unfortunately, the chamber bushings often came loose. Eventually the Navy gave up and bought a batch of new 7.62x51mm barrels from Springfield in 1965 and 1966, and changed the conversion program to a full barrel replacement &#8211; designated Mk2 Mod1.<\/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>When the US military adopted 7.62mm NATO, the Army considered converting M1 Garands to the new caliber, and decided it wasn\u2019t worthwhile. For them, Garands in .30-06 were perfectly suitable for training, and a large supply of .30-06 ammunition was still on hand. For the Navy, however, the calculation was different. The Navy knew it&hellip;&nbsp;<a href=\"https:\/\/surplused.com\/index.php\/2026\/05\/09\/navy-m1-garand-conversions-to-7-62mm-nato-mk2-mod0-mk2-mod1\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Navy M1 Garand Conversions to 7.62mm NATO: Mk2 Mod0 &#038; Mk2 Mod1<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":29489,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"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":""},"categories":[89,19],"tags":[],"class_list":["post-29488","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\/29488","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=29488"}],"version-history":[{"count":0,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/posts\/29488\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media\/29489"}],"wp:attachment":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media?parent=29488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/categories?post=29488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/tags?post=29488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}