Skip to product information
1 of 1

REF: SKU:2062

KNOBLOCH 37 MM DIAPHRAGM - BLACK
The diaphragm or iris shutter is essential for pistol or rifle shooters who shoot with an open adjustment, replacing the dioptre and improving focus. It is discreetly installed on the lens mount to minimise reflections. The Knobloch 37mm Diaphragm - black is compatible with right-handed and left-handed shooters. Features: 37mm diameter, black colour, made of steel and polymer.
    See more
    View full details
    DIAFRAGMA KNOBLOCH 37MM. - NEGRO & Black

    KNOBLOCH 37 MM DIAPHRAGM - BLACK

    Knobloch
    Regular price 58,85€
    Tax included. Shipping calculated at checkout.
    Delivery in 10-20 working days

    General data

    The Knobloch 37mm Diaphragm - black is an innovative accessory designed for precision shooting enthusiasts. Designed to meet the demands of pistol or rifle shooters looking for an open adjustment, this diaphragm replaces the traditional dioptre, providing superior focus and greater depth of field. It is easy to install, fitting onto the lens mount from behind, minimising annoying reflections and ensuring clear vision. Made from a robust combination of steel and polymer, this device is a versatile tool, suitable for both right-handed and left-handed shooters. With a precise diameter of 37mm and an elegant black finish, the Knobloch Diaphragm is an essential solution for improving accuracy with every shot.


    Technical specifications:

    Diameter (mm)37
    MaterialSteel

      What type of shooters is it suitable for?

      It is suitable for pistol or rifle shooters who shoot with an open sight. This diaphragm improves depth of field and replaces the dioptre.

      What benefits does it offer when shooting?

      It improves focus and depth of field when shooting, which is especially useful for shooting with a wide aperture, as well as reducing annoying lens flare.

      Is it compatible for left-handed shooters?

      Yes, it is compatible for both right-handed and left-handed shooters, making it versatile for any user.

      What material is it made of?

      It is made of steel and polymer, ensuring durability and lightness, ideal for withstanding the typical conditions of use by shooters.

      • Items with warranty and quick returns

        We distribute the best items and we trust that we have quality guarantees...

        Our experience supports us and we accompany our clients for years. If an item does not convince you, we make quick returns.

        Know more
      • Secure payment method

        Payment methods are Visa, Paypal and bank transfer.

        Our mission is to deliver your rifle to your home in the shortest time possible and with the best quality and price.

      • Certain items may require additional documentation.

        We ship worldwide, which is why in certain countries the distribution of weapons may require additional information.

        Please check our page where we inform you of the requirements for the sale of weapons by country.

      Why buy at Carbin

      Your orders always on time

      Immediate shipment of our stock

      The first is your security

      100% safe and convenient payment methods

      From Spain to anywhere in the world

      Carbin, your 100% Spanish armory

      Zero worries

      Exchanges and returns are welcome

      Do you need help?

      Direct contact by phone or WhatsApp whenever you need it

      4,8/5

      Total reviews: 1006

      14/05/2026

      Super fast, and quality materials. 5-star recommendation.

      17/12/2025

      I ordered a batch of metallic ammunition at the best price I found anywhere I looked, and they kept me frequently updated via WhatsApp about the order! They were attentive, friendly, and helpful! I placed the order on Saturday, they shipped it yesterday, and it arrived early this morning! 100% recommended!

      24/04/2026

      I had a problem with a rifle and they resolved it EXCELLENTLY: They responded, sent it to the factory, and reshipped it quickly. VERY SATISFIED.

      16/04/2026

      Professionalism and communication. Perfect.

      04/02/2026

      Hello, Despite my antivirus alerts, this website is trustworthy. Very competitive prices, excellent communication, and incredibly fast delivery times. I placed an order on December 17, 2025, after contacting them by phone. They were very helpful and did everything they could to ship the package the same day... And indeed, it arrived two days later, on December 19, 2025, at 8:51 a.m. (Shipping from Spain to France, amazing!)

      13/01/2026

      Excellent online store, they have a large stock, competitive prices and very importantly, they are very professional and helpful. I have bought many items, everything has been super satisfactory and well advised, highly recommended.

      25/04/2025

      My order was delivered within the deadline, and the charging equipment was very reasonably priced! A reputable store!

      18/04/2025

      SUPER HAPPY, I bought a Gamo Maxima 5.5 rifle and the shipping to Castellón was super super fast, the next morning I already had it at home, and everything was perfect, very protected packaging, very good communication, I will buy from them again a million times because they are incredibly friendly, the guy explained everything to me and such, 100% RECOMMENDED, thank you very much and a big hug.

      08/04/2025

      I had the pleasure of purchasing the 150th Anniversary Edition Cometa 400 Fenix ​​​​at the lowest price I could find online from these kind people. I also indicated that I am passionate about wood and that it would be great if they could send me a nicely figured example. These come with Spanish Walnut stocks. I'm not sure what was done in the background, but I can certainly say my hopes were met on this point!! Excellent communication and overall customer service as I had a few inquiries that were promptly answered. Shipping to France was FAST, easy, and inexpensive. I don't normally write these reviews, but this exceptional service motivated me to do so. I highly recommend this store!

      28/08/2024

      This is a company with a level of professionalism, sincerity, and responsiveness rarely seen today! It's always a pleasure doing business, there's complete trust, even with a very small client like me! Congratulations on your professionalism at all levels! I highly recommend it. Thank you.