{"id":28588,"date":"2025-12-26T07:00:23","date_gmt":"2025-12-26T13:00:23","guid":{"rendered":"http:\/\/surplused.com\/index.php\/2025\/12\/26\/semiauto-open-bolt-mac-10-they-made-more-than-100000-of-these\/"},"modified":"2025-12-26T07:00:23","modified_gmt":"2025-12-26T13:00:23","slug":"semiauto-open-bolt-mac-10-they-made-more-than-100000-of-these","status":"publish","type":"post","link":"https:\/\/surplused.com\/index.php\/2025\/12\/26\/semiauto-open-bolt-mac-10-they-made-more-than-100000-of-these\/","title":{"rendered":"Semiauto Open-Bolt MAC-10 (They Made More than 100,000 of These)"},"content":{"rendered":"<div class=\"mejs-video-container\"><iframe loading=\"lazy\" allow=\"autoplay\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/CmPUmcm8W58?controls=1\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>(Note to YouTube: this does NOT have an FRT &#8220;Forced Reset Trigger&#8221;; it is a trigger that is forcibly reset to semiautomatic with every shot. In addition, the magazine shown holds 25 rounds.)<\/p>\n<p>The best firearms reference books: <a href=\"https:\/\/www.headstamppublishing.com\" target=\"_blank\">https:\/\/www.headstamppublishing.com<\/a><\/p>\n<p>When Wayne Daniels took over control of RPB in 1978, he introduced a semiautomatic pistol version of the iconic MAC submachine gun. Called the &#8220;SAP&#8221; (Semi Automatic Pistol), there were three versions; .380, 9mm, and .45.  They fired form an open bolt, and were virtually identical to the full auto type, but with a permanently engaged semiautomatic disconnector. The ATF approved this design in 1978, and then reneged and reclassified the design as a machine gun in 1982 after a lot of people made some&#8230;changes to them. The existing open-bolt semiautomatic guns were grandfathered in, but new production examples were required to be registered. <\/p>\n<p>Given the $200 tax on what was still a sub-$200 gun, this totally squashed the market for RPB. Daniels brought in a designer (Max Atchisson) to come up with a closed-bolt semiautomatic MAC, and re-formed the company as SWD (his and his wife&#8217;s initials; Sylvia Wayne Daniels) to produce that design.<\/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>(Note to YouTube: this does NOT have an FRT &#8220;Forced Reset Trigger&#8221;; it is a trigger that is forcibly reset to semiautomatic with every shot. In addition, the magazine shown holds 25 rounds.) The best firearms reference books: https:\/\/www.headstamppublishing.com When Wayne Daniels took over control of RPB in 1978, he introduced a semiautomatic pistol version&hellip;&nbsp;<a href=\"https:\/\/surplused.com\/index.php\/2025\/12\/26\/semiauto-open-bolt-mac-10-they-made-more-than-100000-of-these\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Semiauto Open-Bolt MAC-10 (They Made More than 100,000 of These)<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":28589,"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-28588","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\/28588","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=28588"}],"version-history":[{"count":0,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/posts\/28588\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media\/28589"}],"wp:attachment":[{"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/media?parent=28588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/categories?post=28588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/surplused.com\/index.php\/wp-json\/wp\/v2\/tags?post=28588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}