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Description
Byrna Boost CO₂ Adapter – 12g Upgrade for Byrna SD, EP & HD Launchers
Take your Byrna launcher to the next level with the Byrna Boost CO₂ Adapter — a simple, easy-to-install upgrade that converts your Byrna SD, EP, or HD launcher from the standard 8g CO₂ system to the more powerful and widely available 12 gram CO₂ cartridge format.
The result: up to 30 rounds per cartridge — a 50% increase in shot capacity over the standard 8g system — giving you more firepower per reload during training sessions or self-defense situations. And because 12g CO₂ cartridges are available at sporting goods stores, paintball shops, and online retailers everywhere, you'll never struggle to find a refill.
Key Features
- ⚡ 50% more shots per cartridge — up to 30 rounds per 12g CO₂ vs. ~20 with the standard 8g system
- 🔧 Easy to install — all hardware and hex keys included, no gunsmithing required
- 🛒 Uses standard 12g CO₂ cartridges — widely available at sporting goods stores, paintball shops, and online
- 🎯 Compatible with Byrna SD, EP & HD launchers
- 📈 Effectively upgrades your launcher to SDXL / HDXL-level CO₂ capacity
- ✅ Canada Approved — ships to all 50 US states
Launcher Compatibility
- ✅ Byrna SD Launcher
- ✅ Byrna EP Launcher
- ✅ Byrna HD Launcher
- ❌ Not compatible with Byrna LE, TCR, SDXL, HDXL, or CL-XL (these already use 12g CO₂ natively)
What Does the Byrna Boost Adapter Do?
The Byrna Boost Adapter replaces the standard 8g CO₂ cartridge housing on compatible Byrna launchers with a new chamber designed to accept the larger 12g CO₂ format. Once installed, your launcher functions identically — but with a larger CO₂ reservoir that delivers more consistent pressure across more shots. Think of it as a factory-level upgrade that transforms your Byrna SD or HD into the equivalent of the SDXL or HDXL.
Specifications
- CO₂ Cartridge Size After Upgrade: 12 grams
- Shot Capacity After Upgrade: ~30 rounds per cartridge
- Shot Capacity Increase: ~50% vs. standard 8g system
- Compatible Launchers: Byrna SD, EP, HD
- Color: Black
- Weight: 0.25 lbs
- Age Restriction: 18+
- Warranty: 1 Year
- UPC: 810042111721
- MPN: HD68800
- Ships To: All 50 US States & Canada
What’s Included
- (1) 12g Adaptor Left
- (1) 12g Adaptor Right
- (1) 5/64 Hex Key
- (1) 1/8 Hex Key
- (3) M3 Hex Screws
- (2) 1/8 Hex Screws
- (3) M3 Hex Nuts
- (1) CO₂ Tube
12g CO₂ cartridges are not included. See our Byrna 12g CO₂ Cartridges 10-Pack to stock up.
Frequently Asked Questions
- Which Byrna launchers are compatible with the Boost Adapter?
- The Byrna Boost Adapter is compatible with the Byrna SD, EP, and HD launchers. It is not compatible with the Byrna LE, TCR, SDXL, HDXL, or CL-XL — those models already use 12g CO₂ cartridges natively and do not require an adapter.
- How many shots does the Byrna Boost Adapter provide per cartridge?
- After installing the Byrna Boost Adapter, your launcher will deliver approximately 30 rounds per 12g CO₂ cartridge — a roughly 50% increase over the standard 8g system.
- Is the Byrna Boost Adapter difficult to install?
- No. The Byrna Boost Adapter is designed for easy DIY installation. All necessary hardware — including hex keys, screws, nuts, and the CO₂ tube — is included in the box. Watch the product video above for a step-by-step installation guide.
- Do I need to buy new CO₂ cartridges after installing the Boost Adapter?
- Yes. After installing the Boost Adapter, your launcher will require standard 12g CO₂ cartridges instead of 8g. 12g cartridges are widely available at sporting goods stores, paintball shops, and online. We also carry Byrna 12g CO₂ Cartridges in our store.
- Does installing the Boost Adapter void my Byrna warranty?
- We recommend checking Byrna's official warranty policy for details on modifications. The Boost Adapter is an official Byrna accessory designed for compatible launchers.
- Are Byrna Boost Adapters legal in all states?
- Yes. The Byrna Boost Adapter ships to all 50 US states and is Canada Approved. Always check your local laws regarding non-lethal launcher accessories.
Important Safety, Legal & Liability Disclaimer
Byrna launchers and related less-lethal products are defensive tools, not toys. Customers are responsible for using, storing, transporting and maintaining these products safely and in accordance with applicable laws, manufacturer instructions and product warnings.
This page provides general safety and liability information for products sold by Nakestores. It does not constitute legal advice.
Important:
Product legality, shipping eligibility, possession, carry and use can vary
by product and jurisdiction. Always review applicable federal, state and
local requirements before purchasing, transporting, carrying or using a
Byrna product.
Age & Purchase Requirements
Byrna launchers are intended for adult purchasers. Customers must meet the minimum age requirement applicable to the product and destination. Byrna currently requires purchasers to be at least 18 years old, subject to any higher age requirement imposed by local law.
Legal Compliance
Byrna launchers are CO2-powered less-lethal devices and are not classified as firearms under Byrna's current product guidance. However, laws can vary significantly by state, county and municipality.
Customers are solely responsible for determining whether they may lawfully purchase, possess, transport, carry and use a particular product in their jurisdiction.
For product-specific destination restrictions, review our Byrna Shipping Restrictions page.
Intended Use
Products sold by Nakestores are intended only for lawful purposes, including lawful self-defense, training, practice and other permitted uses.
Byrna launchers should never be brandished, displayed or used in a threatening or unlawful manner. Improper use may result in serious injury, civil liability or criminal consequences.
Operational Safety
Safe Handling
- Treat every launcher as if it is loaded and ready to discharge.
- Keep the launcher pointed in a safe direction.
- Keep fingers away from the trigger until ready to use the launcher lawfully.
- Know your target and what is beyond it.
- Keep launchers secured from children and unauthorized users.
Training & Practice
- Use an appropriate backstop when practicing.
- Wear appropriate eye protection during training and practice.
- Use compatible kinetic or training projectiles for routine practice.
- Follow all range, facility and manufacturer safety instructions.
CO2 Safety
Byrna launchers use compressed CO2 cartridges. Compressed-gas products must be handled, stored and transported carefully.
- Use only the CO2 cartridge type specified for your exact launcher.
- Follow manufacturer instructions for installation, piercing and removal.
- Do not puncture, crush, modify, burn or expose CO2 cartridges to excessive heat.
- Store CO2 cartridges in a cool, dry location away from children.
- Performance can vary with temperature and operating conditions.
- Inspect cartridges and launcher components before use.
Refer to the applicable Byrna manual and safety documentation for current CO2 handling instructions.
Projectile Safety
Use only projectiles that are compatible with the caliber and launcher model being operated.
- Do not use incompatible or unauthorized projectiles.
- Inspect projectiles and magazines before loading.
- Chemical-irritant projectiles should only be used lawfully and responsibly.
- Indoor discharge of chemical projectiles can expose occupants and contaminate enclosed spaces.
- Read all packaging, labels, safety data and manufacturer warnings before use.
Maintenance, Modification & Compatible Equipment
Routine inspection and maintenance are important to reliable operation. Follow the manufacturer's current maintenance instructions for your exact launcher model.
- Inspect your launcher before use for damage, wear or contamination.
- Use manufacturer-approved maintenance products where applicable.
- Do not improperly disassemble or modify the launcher.
- Use compatible magazines, projectiles, CO2 cartridges and accessories.
Byrna's warranty materials warn that unauthorized modifications, incompatible accessories, improper handling or misuse may void applicable warranty coverage. :contentReference[oaicite:1]{index=1}
Transportation & Travel
Customers are responsible for complying with all transportation rules that apply to Byrna launchers, projectiles and compressed CO2 cartridges.
Airline and airport policies can differ, and transportation rules may change. Byrna currently advises that launchers must not be carried in commercial-airline carry-on baggage and recommends checking airline, airport, TSA and destination requirements before travel. :contentReference[oaicite:2]{index=2}
Product Information & Accuracy
Nakestores makes reasonable efforts to keep product information accurate, but specifications, packaging, included accessories, colors, images and manufacturer descriptions can change without notice.
Product images may differ slightly from the item received because of photography, lighting, monitor settings, packaging revisions or manufacturer updates.
When a specification is critical to a purchasing decision, customers should confirm the current product specifications before ordering.
Shipping & Product Restrictions
Nakestores ships eligible products according to our current shipping policies and destination restrictions.
Not every product can be shipped to every state, municipality or international destination.
Review:
Nakestores may refuse, cancel or refund an order when a product cannot lawfully or prudently be shipped to the destination provided.
Assumption of Responsibility & Limitation of Liability
Products sold by Nakestores are sold for lawful use only. The purchaser and user are responsible for determining product suitability, reading and following all instructions and warnings, complying with applicable laws, and using the product safely and responsibly.
To the maximum extent permitted by applicable law, Nakestores is not responsible for injury, property damage, loss, legal consequences or other harm caused by misuse, unlawful use, negligent handling, unauthorized modification, failure to follow manufacturer instructions or use of incompatible products.
Nothing on this page is intended to waive or limit any right or liability that cannot lawfully be waived or limited.
Manufacturer Instructions Control
Customers should read the manufacturer's current user manual, packaging, labels, safety data sheets and warnings before operating or handling a Byrna product.
Byrna publishes product manuals and safety data sheets for launchers, projectiles, CO2 cartridges and related products. :contentReference[oaicite:3]{index=3}
Related Nakestores Resources
For additional product, safety, shipping and training information, visit:
30 Days Free-Return
To be eligible for a return, your item must be unused, in its original condition, with tags attached, and in the original packaging. A receipt or proof of purchase is required to initiate the return process.
How to Initiate Your Return
To begin the return process, please click here. Make sure that you send the return to the following address:
Nakestores Byrna Dealer
7822 Balboa Blvd
Van Nuys, CA 91406
Once we accept your return request, we will provide you with a return shipping label and detailed instructions on how and where to send your package. Please note that returns without prior authorization will not be accepted.
Damaged or Defective Items
If your Byrna® launcher, Byrna Shields™, Byrna Banshees™, or accessories arrive damaged or defective, you can request a replacement within ten days of receipt.
Order Cancellations
If you change your mind about an order, notify us within fourteen days of receiving your order. We will issue a refund if the order has not yet shipped.
Non-Returnable Items
Certain items are not eligible for return due to their nature. These include:
- Pepper, Max, and BGR Products
- CO2 Cartridges
- Chemical Projectiles
- Hazardous Materials
- Body Armor and Custom Products
Refunds
Refunds will be issued to your original payment method within five business days after we inspect the returned item. If you haven't received your refund after ten business days, please contact us at support@nakestores.com or call us at 855-777-7551.
Thank you for choosing Nakestores. We are committed to providing you with quality products and excellent customer service.
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Overall rating: 5.0 / 5 from 5 reviews.
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Reviews
May sound a bit silly but i went with the SD Peppe
"May sound a bit silly but i went with the SD Pepper Kit because of the Color. The Tan only comes in the SD so I purchased the Boost Launcher and turned my SD into an XL. I also want use of the 12 gram CO2 Cartridges for more lasting shots over the 8 gram. Once I attached the Boost onto my SD one would never know it was an SD."
Makes my launcher last up
"Makes my launcher last up to 7 mags with the Boost + the 12g CO2!!!"
Get one.
"If you don’t already have one for your EP or SD you have to get one. The extra shots definitely count."
May sound a bit silly
"May sound a bit silly but i went with the SD Pepper Kit because of the Color. The Tan only comes in the SD so I purchased the Boost Launcher and turned my SD into an XL. I also want use of the 12 gram CO2 Cartridges for more lasting shots over the 8 gram. Once I attached the Boost onto my SD one would never know it was an SD."
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