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C25 Quick Release System for Multirotor Arms ----- (Fits Cinestar or Similar Craft)

THIS DESIGN IS PATENTED #29/524,366 One of the most important features of a Multirotor Aerial Platform is transportability. Anyone who has shipped a heavy lift UAS understands the value of a drastic reduction in package dimensions. That's what she said. To this end, we created the C25 Quick Release System for...

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One of the most important features of a Multirotor Aerial Platform is transportability. Anyone who has shipped a heavy lift UAS understands the value of a drastic reduction in package dimensions. That's what she said. To this end, we created the C25 Quick Release System for Multirotor Arms. While the name is quite a mouthful, it's function is fairly straight forward: A secure, easily detachable interface between the arms and the hub of your multirotor. Our system places the "break" point for the arm just past the center hub of the craft via our 'double retention lever clamp' design, thereby creating a much smaller overall craft footprint when the two are separated and retaining the structural integrity and rigidity of the arm when connected. Our system can be applied to ANY manufacturer's craft that utilizes 25mm OD carbon fiber tubes. We use only the highest quality materials in our products and it shows; take one look at our robust, 4mm high current gold plated plugs embedded in each side of the C25 as well as the high quality aluminum CNC work. You'll breathe that sigh of relief knowing that your connections are secure. Internal electrical layout will support single or double motor configurations including; I4, X4, I6, V6, IY6, Y6, I8, V8, X8, X12, X16. Our engineering team spent hundreds of hours in 3D CAD designing this system. After concept and design we follow with real world testing, revisions, more testing, beatings and revisions, all to make sure our products don't suck. Some assembly required. These ain't your grandpa's multirotor components. 



    C25 Features:

    • Ability to detach the arm from your multirotor quickly and easily for travel
    • Completely tool-less operation
    • Can be applied to ANY 25mm outside diameter carbon fiber tube arm multirotor 
    • Allows you to upgrade your existing craft or apply to a new build
    • Revolutionary quick release arm lever system holds arm together effectively, and keeps arm rigid allowing for high power motors and prop combos
    • Can be used with heavy lift systems 
    • Quick release mechanism includes a safety latch making arm separation impossible during flight
    • 4mm high current bullet connectors specially designed for this application allowing for continuous arm removal for the life of your craft
    • Internal electrical connections allow for single or double motor setups per arm
    • Structural components constructed of high quality black anodized CNC aluminum and stainless steel fasteners
    • Interior electrical plugs manufactured using high end "SLS" Selective Laser Sintering 3D printing. Made of high quality durable plastic
    • Hundreds of hours of 3D CAD design and real world testing
    • Assembly is easy
    • Tolerancing of mating parts is incredibly precise and machining quality is outstanding
    • Industry leading customer support 
    • Included in each C25 kit is 6 male and 6 female 4mm motor connectors. Wiring is not included. We do include a touch of awesome at no extra charge. 


    C25 Specifications:

    Weight: 70 grams 
    Quantity of motors supported per arm:
    Arm size requirements: 25mm OD x 23mm ID 
    Current rating per motor burst: 120 amps
    Max wire size accepted in bullet connectors: 12 AWG
    Craft Configurations Supported: IY6, Y6, I4, X4, X8, I6, X6, I8, V8, X12, X16


    C25 Load Ratings: 

    Each single C25 is rated to 7.5 LBS (3.40 KG) using a 550mm long armHigher loading can be achieved using shorter arms. For more info just email us!

     Tri Configuration (Three 550mm Arms) = 22.5 LBS (10.20 KG) AUW

    Quad Configuration (Four 550mm Arms) = 30 LBS (13.60 KG) AUW

    Hex Configuration (Six 550mm Arms) = 45 LBS (20.41 KG) AUW

    Octo Configuration (Eight 550mm Arms) = 60 LBS (27.21 KG) AUW


     C25 and C30 Assembly Manual


    Note: Catalyst Machineworks reserves the right to change product pricing at any time. 


    Note: All shipping prices listed on our site are for shipping and handling costs associated with shipping your order. 

    Domestic Shipping within the USA

    By default we ship via USPS (United States Postal Service) to anywhere in the United States. But, if you are interested in a faster option such as DHL email us at and we can give you instructions on how to get expedited shipping. If you want expedited shipping be sure to email us prior to checking out with your order. We will arrange a shipping quote for you and then give you instructions on how to include this shipping option at checkout. Our USPS shipping option usually takes 2 to 4 days to reach anywhere in the USA. By default this shipping option will NOT require a signature. If you want us to specify signature required please let us know prior to placing your order. 

    USPS Insurance 

    USPS shipping includes $50 insurance by default. If you require more please let us know prior to placing your order. PLEASE NOTE: We will not be held liable in the event your package or package contents are lost, damaged, or stolen during shipping. When your package leaves our shop and is placed in the hands of the shipping service it is out of our hands. We have no control of what happens to your package after it leaves our doors. Shipping insurance it available to protect you in the event something happens to your package during delivery. We will not reimburse you for lost, damaged, or stolen items. That is what shipping insurance is for. If you would like to add shipping insurance to cover the value of your purchase email us at for more info. 

    International Shipping 

    We can ship to almost anywhere in the world! Available international shipping options are using United States Postal Service (USPS) or DHL. USPS shipping will be per the flat rate option. This is $28 and can take 6-10 days to reach your country. From here your country postal service will deliver your package and can add additional delivery time. Usually USPS tracking ends once the package reaches your country. Our second shipping option is using DHL. This is considered a premium option and is very fast. Customer service with DHL is the best in the shipping business. Typically DHL only takes 2-3 days to delivery to most locations throughout the world. DHL international shipping always comes with tracking. While this is a more expensive option it is much better than USPS. 

    Shipment Handling Time

    We require 1 full business day to ship. Additionally, some products come with a longer lead times to ship (see product descriptions). Orders received on Friday may be shipped out the following Monday morning.

    Restocking Fee

    You can return any item you buy from us for a refund. The item must be completely unopened, brand new, unused, and not damaged. We will wait to receive the product into our stock before issuing a refund. We will also make an assessment of the item, once received. If it is damaged in any way we will not issue a refund and send the item back to you. You have two weeks (from the date order placed) to return any item for a full refund. After the two week grace period we apply a 25% restocking fee. 

    Return Policy 

    If you believe an item you have purchased is defective our policy is a follows: 

    1. Email us first with your issue. We will instruct you as to whether the item needs to be returned to us. Our email is Assuming we instruct you to return the item to us please ship it to the address below. 

    2. Once we receive the item our team will access it. 

    3. If we determine the item is indeed defective we will give you a full refund for the price of the item, or replace it. 

    4. If we determine there is nothing wrong with the item we will ship it back to you at your cost (you pay for the return shipping). 

    5. We DO NOT replace broken frame parts, electronics, or accessories you have crashes into the ground, a tree, a fence, a human, or anything else for that matter.