{"product_id":"eratac-schusswinkelkompensator-swk-halter-mit-libelle","title":"ERATAC Angle Degree Indicator \u0026 ADI Mount with Bubble Level","description":"\u003cstyle\u003e\n.br-product{font-family:Arial,Helvetica,sans-serif;line-height:1.6;color:#222;}\n.br-product h2{font-size:1.2rem;margin-top:28px;}\n.br-product ul{padding-left:18px;}\n.br-product .info-box{background:#ffdddd;border-left:6px solid #c40000;padding:12px;margin:20px 0;}\n.br-product .tip-box{background:#eef6ff;border-left:6px solid #2a6fdb;padding:12px;margin:20px 0;}\n.br-product .trust-box{background:#eaf7ea;border-left:6px solid #2f8f2f;padding:12px;margin:20px 0;}\n.br-product .compare-box{background:#f5f5f5;border-left:6px solid #444;padding:12px;margin:20px 0;}\n.br-product details{background:#f2f2f2;padding:10px;margin-bottom:8px;border-radius:4px;}\n.br-product summary{font-weight:600;cursor:pointer;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"br-product\"\u003e\n\n\u003ch2\u003eERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level – Angle Cosine Indicator and Level Holder for Precise Long-Range Setups\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eIn steep terrain and at long distances, angle and cant are real sources of error.\u003c\/strong\u003e\u003cbr\u003e\nERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level is an ERATAC holder or angle cosine indicator\/level module for optic mounts and precise long-range setups.\u003c\/p\u003e\n\n\u003cp\u003eAn ACI or a level does not calculate or shoot for you. Angle information and rifle position must be correctly applied in ballistics, holdover, or turret adjustment. Variants and dimensions must match the existing rail, mount, or platform: Version: Mil Spec, Standard, Holder with Level.\u003c\/p\u003e\n\n\u003cdiv class=\"info-box\"\u003e\n\u003cstrong\u003eImportant note for classification:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\nAn ACI or a level does not calculate or shoot for you. Angle information and rifle position must be correctly applied in ballistics, holdover, or turret adjustment.\u003cbr\u003e\u003cbr\u003eBefore purchasing, check: interface, mounting position, visibility in the shooting position, compatibility with the existing ERATAC\/Picatinny base, tools, and actual intended use.\n\u003c\/div\u003e\n\n\u003cdiv class=\"trust-box\"\u003e\n\u003cstrong\u003eWhat makes this product technically special:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n✔ \u003cstrong\u003eAngle Control:\u003c\/strong\u003e helps with uphill or downhill shots where horizontal distance is critical.\u003cbr\u003e\n✔ \u003cstrong\u003eLevel:\u003c\/strong\u003e makes cant visible and reduces lateral deviation due to a crooked rifle position.\u003cbr\u003e\n✔ \u003cstrong\u003eMount-Adjacent System:\u003c\/strong\u003e sits close to the optic and remains easier to control in the shooting position.\u003cbr\u003e\n✔ \u003cstrong\u003eUNIVERSAL Interface Logic:\u003c\/strong\u003e fits compatible ERATAC mounts and accessory positions.\u003cbr\u003e\n✔ \u003cstrong\u003eDistance Benefit:\u003c\/strong\u003e particularly relevant for long-range, mountain hunting, and steep shooting angles.\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy this product?\u003c\/h2\u003e\n\n\u003cp\u003eThis product solves a small but practically relevant interface problem. It is not a main system, but a component that makes mounting, operation, or control more reliable. The key is whether it is visible, accessible, and compatible with your actual setup.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eError Prevention:\u003c\/strong\u003e reduces typical mounting or operating errors when used correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Integration:\u003c\/strong\u003e complements existing ERATAC\/Picatinny setups instead of replacing an entire platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReproducibility:\u003c\/strong\u003e helps to repeat settings and procedures more cleanly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePractical Benefit:\u003c\/strong\u003e useful for users who not only mount equipment but also use it in a controlled manner.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"tip-box\"\u003e\n\u003cstrong\u003eInstructor's Tip: Small parts cause big problems if used incorrectly\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\nBefore the first live use, check not only if the part fits, but if you can actually use it in the shooting position. A level that is not visible, or a control element that cannot be reached with gloves, provides no real advantage.\u003cbr\u003e\u003cbr\u003eAfter mounting, always check function, free movement, and secure fit. Accessories on rails and mounts, in particular, can come loose due to recoil, transport, or frequent handling if they were only tightened by feel.\n\u003c\/div\u003e\n\n\u003ch2\u003eOur Assessment\u003c\/h2\u003e\n\n\u003cp\u003eThe ERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level is useful if you want to solve exactly this interface problem and compatibility has been clarified in advance. It is less useful if you expect a small accessory part to compensate for fundamental mounting, shooting, or operating errors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange and precision setups with repeatable mounting work\u003c\/li\u003e\n\u003cli\u003eHunting rifles with a deliberately designed optics\/accessory logic\u003c\/li\u003e\n\u003cli\u003eWorkbench, mounting, zeroing, and control shots\u003c\/li\u003e\n\u003cli\u003eUsers who do not want to ignore small system errors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLess suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUsers without a suitable interface\u003c\/li\u003e\n\u003cli\u003eSetups where the component is not visible or accessible in the shooting position\u003c\/li\u003e\n\u003cli\u003eUsers who do not perform mounting and control cleanly\u003c\/li\u003e\n\u003cli\u003eCases where a different main system is actually needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"compare-box\"\u003e\n\u003cstrong\u003eDirect Classification:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n✔ \u003cstrong\u003eERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level:\u003c\/strong\u003e useful as a precise accessory for an existing setup.\u003cbr\u003e\n✔ \u003cstrong\u003eImprovised Solution:\u003c\/strong\u003e cheaper, but often less reproducible and more prone to errors.\u003cbr\u003e\u003cbr\u003e\nThe product is worthwhile if it solves a real problem: alignment, display, attachment, or operation. Without a suitable interface, it is the wrong part.\n\u003c\/div\u003e\n\n\u003ch2\u003eApplication Scenarios\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkbench \/ Mounting:\u003c\/strong\u003e clean alignment, checking, and retrofitting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e control of position, function, or accessory position under real recoil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHunting:\u003c\/strong\u003e a useful addition if operation and visibility in the shooting position are suitable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Range:\u003c\/strong\u003e particularly relevant for angle, cant, and mounting errors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"tip-box\"\u003e\n\u003cstrong\u003ePractical Tip: Do not infer compatibility from the name\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\nERATAC parts sometimes look similar but work with different interfaces. Check SKU, height, diameter, and interface – not just the product image or heading.\u003cbr\u003e\u003cbr\u003eFor accessories on optic mounts, also check whether turrets, parallax wheel, illumination unit, or magnification ring remain freely operable.\n\u003c\/div\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Construction\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eACI\/SWK:\u003c\/strong\u003e Angle Cosine Indicator for estimating the angle and effective horizontal distance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel:\u003c\/strong\u003e visible control against canting in the shooting position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Position:\u003c\/strong\u003e must be positioned so that it remains readable in the shooting position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePractical Limit:\u003c\/strong\u003e the display does not replace ballistic data or clean shooting technique.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariant Logic:\u003c\/strong\u003e Version: Mil Spec, Standard, Holder with Level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Data\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ERATAC \/ Recknagel – Accessories for mounting, sighting, and weapon platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e ACI\/Level Holder – Special component for defined interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariants:\u003c\/strong\u003e Version: Mil Spec, Standard, Holder with Level – selection must match the setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersion:\u003c\/strong\u003e Mil Spec, Standard, Holder with Level – determines the suitable version, not just the appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer\/Item Numbers:\u003c\/strong\u003e Mil Spec: T0941-0001; Standard: T0941-0000; Holder with Level: T0940-0002.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eScope of Delivery\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e1x ERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level in the selected variant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"info-box\"\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\nNo weapon, no optics, no main mount, no torque wrench, and no other accessories. Only include additional parts if they are expressly part of the scope of delivery in the specific variant.\n\u003c\/div\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDoes the product fit every ERATAC mount?\u003c\/summary\u003e\n\u003cp\u003eNo. ERATAC uses different interfaces and series. Check the item number, diameter, height, and interface of your mount.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDo I have to perform a function test after mounting?\u003c\/summary\u003e\n\u003cp\u003eYes. Accessories and safety-relevant parts must be checked for secure fit, free movement, and function after mounting.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs this product equally suitable for hunting and sport?\u003c\/summary\u003e\n\u003cp\u003eOnly if the function matches the setup. For hunting, quick operation and minimal disturbance are important; for sport, reproducibility and precise control are often key.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan the product compensate for mounting errors?\u003c\/summary\u003e\n\u003cp\u003eNo. It can control or supplement, but it does not replace proper basic mounting, suitable height, or correct torques.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhen is this product not useful?\u003c\/summary\u003e\n\u003cp\u003eIf the interface does not fit or you cannot utilize the benefit in the shooting position. In that case, a different accessory or mount is a better choice.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cp\u003e\u003cstrong\u003eConclusion:\u003c\/strong\u003e The ERATAC Angle Cosine Indicator \u0026amp; ACI Holder with Level is a useful special part if the interface, function, and application truly match. It is not a universal remedy but a precise component for cleanly built setups.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"ERATAC","offers":[{"title":"Military Specification","offer_id":56868034642268,"sku":"T0941-0001","price":383.8,"currency_code":"EUR","in_stock":true},{"title":"Standard","offer_id":56868034675036,"sku":"T0941-0000","price":311.0,"currency_code":"EUR","in_stock":true},{"title":"Holder with spirit level","offer_id":56868034707804,"sku":"T0940-0002","price":83.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/6089\/6860\/files\/image_46294ff4-e33d-46c8-9716-45af95162af1.jpg?v=1777375675","url":"https:\/\/black-raptor.de\/en\/products\/eratac-schusswinkelkompensator-swk-halter-mit-libelle","provider":"Black Raptor","version":"1.0","type":"link"}