{"id":1,"date":"2019-03-11T14:33:25","date_gmt":"2019-03-11T12:33:25","guid":{"rendered":"https:\/\/mildot.fi\/?p=1"},"modified":"2024-04-11T09:16:36","modified_gmt":"2024-04-11T07:16:36","slug":"explaining-model-markings-spuhr","status":"publish","type":"post","link":"https:\/\/mildot.fi\/index.php\/2019\/03\/11\/explaining-model-markings-spuhr\/","title":{"rendered":"Explaining the model markings by Spuhr"},"content":{"rendered":"

EXPLAINING THE ISMS MODEL MARKINGS<\/strong><\/p>\n

Most items from Spuhr are marked with a model number and a batch number. When ordering please refer to the model numbers.<\/p>\n

Scope mounts are marked with a model number consisting of two or three letters followed by four digits. However, there are three exceptions to this rule where there is a total of five digits as well as some models featuring a suffix.<\/p>\n

The batch\u00a0numbers consist of four letters. Old batch numbers consisted of a single letter followed by four numbers; for example M-1204 or M12\/04, where the numbers indicate year and month.<\/p>\n

The initial letters identify the type\/firearm\/rail the mount is designed for:<\/strong>
\nQDP – Q<\/strong>uick D<\/strong>etachable mount P<\/strong>icatinny
\nSA – S<\/strong>cope mount A<\/strong>ccuracy International (11mm dovetail)
\nSP – S<\/strong>cope mount P<\/strong>icatinny
\nSS – S<\/strong>cope mount S<\/strong>auer (for Sauer SSG and STR rifles)
\nST – S<\/strong>cope mount T<\/strong>RG (17 mm dovetail)
\nSR – S<\/strong>cope R<\/strong>ings (separate rings for Picatinny rail)<\/p>\n

The first digit identifies tube diameter:<\/strong>
\n3 – 30 mm tube
\n4 – 34 mm tube
\n5 – 35 mm tube
\n6 – 36 mm tube
\n7 – 40 mm tube<\/p>\n

The second digit identifies tilt:<\/strong>
\n0 – 0 tilt
\n3 – 3 MIL\/10.3 MOA
\n6 – 6 MIL\/20.6 MOA
\n7 – 7 MIL\/24 MOA tilt
\n8 – 13 MIL\/44.4 MOA
\n9 – 9 MIL\/31 MOA<\/p>\n

Note:<\/strong> The SP-61602 and SP-41808 feature two digits for tilt: 16, indicating a tilt of 16 MIL\/55 MOA, and 18, indicating 18 MIL\/61.8 MOA. First run of SP-4803b had 11 MIL\/40 MOA tilt.<\/p>\n

The third digit (if other than 0) is for special versions:<\/strong>
\n1 – Cantilever mount
\n2 – Extended-length cantilever mount
\n3 – Short rear top cover for the S&B Ultra Short
\n4 – Medium-height cantilever mount<\/p>\n

The fourth digit identifies height:<\/strong>
\n1 – 30 mm \/ 1.18″
\n2 – 38 mm \/ 1.5″
\n4 – 48 mm \/ 1.89″
\n6 – 34 mm \/ 1.35″ (except for on Cantilever mounts)
\n8 – 44 mm \/ 1.73″<\/p>\n

Note:<\/strong> The height is always measured from the top of the rail to the centerline of the optics. On a tilted mount the measurement is made at the back plane of the rear ring.<\/p>\n

B suffix<\/strong>
\nSome older mounts featured a B suffix following the model number. In the ISMS line this indicates an extra-long mount for scopes with extended length erector housings, such as the U.S. Optics TPAL and the NightForce B.E.A.S.T.<\/p>\n

C suffix<\/strong>
\nSome mounts feature a C suffix following the model number. This denotes a Gen3 mount which has either an updated side clamp design or (for all 34 mm mounts) an increased distance between the rings, using an A-40B rear top cover, or both.<\/p>\n

Cantilever Mounts<\/strong>
\nWe currently offer three heights for our cantilever mounts. We offer two types of cantilever design: a 40 mm\/1.57″ cantilever and a 70 mm\/2.75″ extended cantilever. Mounts with a 1 or 4 as a third digit in the model number feature the 40 mm cantilever, whereas mounts with a 2 as the third digit feature an extended cantilever.<\/p>\n

This is a copy from Spuhr webpage: EXPLAINING THE ISMS MODEL MARKINGS<\/a><\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"

Scope mounts are marked with a model number consisting of two or three letters followed by four digits. However, there are three exceptions to this rule where there is a total of five digits as well as some models featuring a suffix.<\/p>\n","protected":false},"author":1,"featured_media":2242,"comment_status":"closed","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","_jetpack_memberships_contains_paid_content":false,"ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[370],"tags":[361,372,357,371],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scope-mounts","tag-isms","tag-model-marking","tag-scope-mount","tag-spuhr","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/mildot.fi\/wp-content\/uploads\/2019\/04\/Spuhr-SP-4016_MilDot.jpg?fit=1200%2C1200&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":6,"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":12901,"href":"https:\/\/mildot.fi\/index.php\/wp-json\/wp\/v2\/posts\/1\/revisions\/12901"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mild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