{"id":6241,"date":"2025-07-27T09:50:52","date_gmt":"2025-07-27T09:50:52","guid":{"rendered":"https:\/\/flatsquare.in\/?post_type=download&#038;p=6241"},"modified":"2025-08-17T07:14:32","modified_gmt":"2025-08-17T07:14:32","slug":"usfa-22lr-zip-gun-fully-3d-printed-compact-functional-diy-model","status":"publish","type":"download","link":"https:\/\/flatsquare.in\/index.php\/downloads\/usfa-22lr-zip-gun-fully-3d-printed-compact-functional-diy-model\/","title":{"rendered":"USFA .22LR Zip Gun \u2013 Fully 3D Printed, Compact &amp; Functional DIY Model"},"content":{"rendered":"\n<ol class=\"wp-block-list\">\n<li><strong>Model Name<\/strong>: USFA Zip Gun \u2013 .22LR Working Model<\/li>\n\n\n\n<li><strong>Type<\/strong>: DIY single-shot pistol, 100% 3D printed (excluding metal parts where required)<\/li>\n\n\n\n<li><strong>Caliber<\/strong>: Designed for .22 Long Rifle (.22LR) ammunition<\/li>\n\n\n\n<li><strong>Design<\/strong>: Compact, minimalist frame inspired by the original USFA Zip<\/li>\n\n\n\n<li><strong>Features<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Detachable barrel insert (for legality and testing)<\/li>\n\n\n\n<li>Functional trigger mechanism<\/li>\n\n\n\n<li>Internal striker-style firing<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Print Specs<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Designed for FDM printers<\/li>\n\n\n\n<li>Optimized for PLA+ or ABS for strength<\/li>\n\n\n\n<li>Supports required for a few parts<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Assembly<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Simple tool-free or minimal-tool build<\/li>\n\n\n\n<li>Few metal components (springs, firing pin recommended)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Safety<\/strong>:\n<ul class=\"wp-block-list\">\n<li>For educational\/demonstration use only<\/li>\n\n\n\n<li>Always follow your local laws<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Download Format<\/strong>:\n<ul class=\"wp-block-list\">\n<li>STL files in a single ZIP<\/li>\n\n\n\n<li>Includes ReadMe with printing and assembly guide<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>License<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Purchase to download \u2013 Public Domain \/ CC0<\/li>\n<\/ul>\n\n\n<div class=\"vsd-model-viewer-wrapper\">\n\t\t\t\t<div class=\"vsd-model-viewer-frame ratio-landscape ratio-mobile-portrait\">\n\t\t\t\t\t<div id=\"vsd-model-viewer-6343\" class=\"vsd-model-viewer vsd-model-viewer-inline  vsd-button-float-bottom-right vsd-button-align-right\">\n\t\t\t\t\t<button class=\"vsd-model-viewer-close-button\"><span class=\"vsd-model-viewer-close-button-icon\"><img decoding=\"async\" class=\"vsd-base-icon\" src=\"https:\/\/flatsquare.in\/wp-content\/plugins\/visody-3d-product-viewer\/public\/img\/close.svg\" width=\"24\" height=\"24\" alt=\"Close icon\"><\/span><span class=\"screen-reader-text\">Close 3D product viewer<\/span><\/button><button class=\"vsd-model-viewer-zoom-in-button\" data-title=\"zip gun\"><span class=\"vsd-model-viewer-zoom-in-button-icon\"><img decoding=\"async\" class=\"vsd-base-icon\" src=\"https:\/\/flatsquare.in\/wp-content\/plugins\/visody-3d-product-viewer\/public\/img\/zoom-in-icon.svg\" width=\"24\" height=\"24\" alt=\"Zoom in icon\"><\/span><span class=\"screen-reader-text\">Zoom in on model<\/span><\/button><button class=\"vsd-model-viewer-zoom-out-button\" data-title=\"zip gun\"><span class=\"vsd-model-viewer-zoom-out-button-icon\"><img decoding=\"async\" class=\"vsd-base-icon\" src=\"https:\/\/flatsquare.in\/wp-content\/plugins\/visody-3d-product-viewer\/public\/img\/zoom-out-icon.svg\" width=\"24\" height=\"24\" alt=\"Zoom out icon\"><\/span><span class=\"screen-reader-text\">Zoom out on model<\/span><\/button><model-viewer src=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/08\/zipgun.glb\" data-base_model_url=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/08\/zipgun.glb\" interaction-prompt=\"none\" camera-controls touch-action=\"pan-y\" ar poster=\"https:\/\/flatsquare.in\/wp-content\/uploads\/edd\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-2.jpg\"><div slot=\"progress-bar\"><\/div><button class=\"vsd-model-viewer-ar-button\" slot=\"ar-button\"><span class=\"vsd-model-viewer-ar-button-icon\"><img loading=\"lazy\" decoding=\"async\" class=\"vsd-base-icon\" src=\"https:\/\/flatsquare.in\/wp-content\/plugins\/visody-3d-product-viewer\/public\/img\/ar-icon.svg\" width=\"24\" height=\"24\" alt=\"AR icon\"><\/span><span class=\"screen-reader-text\">View model in AR<\/span><svg width=\"32px\" height=\"32px\" class=\"vsd-loader-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 100 100\" preserveAspectRatio=\"xMidYMid\" class=\"lds-rolling\" style=\"background: none;\"><circle cx=\"50\" cy=\"50\" fill=\"none\" stroke-width=\"6\" r=\"35\" stroke-dasharray=\"164.93361431346415 56.97787143782138\" transform=\"rotate(36 50 50)\"><animateTransform attributeName=\"transform\" type=\"rotate\" calcMode=\"linear\" values=\"0 50 50;360 50 50\" keyTimes=\"0;1\" dur=\"1s\" begin=\"0s\" repeatCount=\"indefinite\"\/><\/circle><\/svg><\/button><div class=\"vsd-ar-failed hide\">AR is not supported on this device<\/div><\/model-viewer>\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t<\/div>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1813\" height=\"1020\" src=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-3-1813x1020.jpg\" alt=\"\" class=\"wp-image-6242\" srcset=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-3-1813x1020.jpg 1813w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-3-300x169.jpg 300w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-3-768x432.jpg 768w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED-3-1536x864.jpg 1536w, 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class=\"wp-image-6245\" srcset=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED5-1813x1020.jpg 1813w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED5-300x169.jpg 300w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED5-768x432.jpg 768w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED5-1536x864.jpg 1536w, https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED5.jpg 1920w\" sizes=\"(max-width: 1813px) 100vw, 1813px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1813\" height=\"1020\" src=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED6-1813x1020.jpg\" alt=\"\" class=\"wp-image-6246\" srcset=\"https:\/\/flatsquare.in\/wp-content\/uploads\/2025\/07\/ZIPGUN-.22LA-USFA-3D-PRINTED6-1813x1020.jpg 1813w, 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