Byrna Boost Adaptor - 12-Gram CO2 Upgrade for SD, EP, HD
Byrna Boost Adaptor - 12-Gram CO2 Upgrade for SD, EP, HD
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Byrna Boost Adaptor - 12-Gram CO2 Upgrade for .68 Caliber Launchers
TAKE YOUR BYRNA SD, EP OR HD LAUNCHER TO THE NEXT LEVEL BY UPGRADING TO THE BYRNA BOOST ADAPTOR.
The Byrna Boost Adaptor is a game-changing upgrade that converts your Byrna SD, EP, or HD launcher to use standard 12-gram CO2 cartridges instead of the larger 8-gram cartridges. This simple modification delivers a massive 50% increase in shot capacity - from 20 rounds per cartridge to 30 rounds - while using CO2 cartridges that are readily available everywhere. Easy to install with included tools and hardware.
IMPORTANT NOTES:
- ⚠️ CO2 Brand Warning: Byrna does not recommend the use of Crosman brand 12-gram CO2 cartridges in your launcher as they may not puncture correctly
- ✅ Compatible: Byrna SD, EP, and HD launchers (.68 caliber)
- ❌ NOT Compatible: Byrna CL (uses different CO2 system)
- ❌ NOT Compatible: Byrna SDXL, HDXL, TCR, Mission 4 (already use 12-gram CO2)
Why Upgrade to Byrna Boost?
The Byrna Boost Adaptor solves two major challenges: limited shot capacity and CO2 availability. By upgrading to 12-gram CO2 cartridges, you get 50% more shots per cartridge (30 rounds vs 20 rounds) and can use CO2 that's available at virtually any sporting goods store, paintball shop, or online retailer. No more searching for specialty 8-gram cartridges - 12-gram CO2 is the industry standard and available everywhere.
- 50% More Shots - 30 rounds per CO2 cartridge (vs 20 with 8-gram)
- Readily Available CO2 - 12-gram cartridges sold everywhere
- Cost Effective - 12-gram CO2 often cheaper and easier to find in bulk
- Easy Installation - Complete kit with all tools and hardware included
- Professional Upgrade - Used by law enforcement and security
- Reversible - Can switch back to 8-gram if needed
Key Benefits:
Increased Payload - 50% More Shots:
- 8-gram CO2 (standard): ~20 rounds per cartridge
- 12-gram CO2 (with Boost): ~30 rounds per cartridge
- 50% increase in shot capacity without changing launcher size
- Fewer CO2 changes during training or defense scenarios
Convenience - CO2 Available Everywhere:
- 12-gram CO2 is the industry standard for paintball and airsoft
- Available at sporting goods stores, paintball shops, big-box retailers
- Easy to find online in bulk quantities
- No more searching for specialty 8-gram cartridges
- Stock up easily for training and defense
What's Included in the Box:
- ✅ 12G Adaptor Left
- ✅ 12G Adaptor Right
- ✅ 5/64 hex key
- ✅ 1/8 hex key
- ✅ (3) M3 hex screws
- ✅ (2) 1/8 hex screws
- ✅ (3) M3 hex nuts
- ✅ CO2 Tube
Everything you need for installation is included - no additional tools or parts required.
Compatible Byrna Launchers:
- ✅ Byrna SD (Standard Defense)
- ✅ Byrna EP (Enhanced Pistol)
- ✅ Byrna HD (Home Defense)
NOT Compatible With:
- ❌ Byrna CL (uses different CO2 system, not upgradeable)
- ❌ Byrna SDXL (already uses 12-gram CO2, no upgrade needed)
- ❌ Byrna HDXL (already uses 12-gram CO2, no upgrade needed)
- ❌ Byrna LE (already uses 12-gram CO2, no upgrade needed)
- ❌ Byrna TCR (uses different CO2 system)
- ❌ Byrna Mission 4 (uses different CO2 system)
Installation:
The Byrna Boost Adaptor is designed for easy installation with the included hex keys and hardware. The kit includes left and right adaptors, CO2 tube, screws, nuts, and all necessary tools. Installation typically takes 15-30 minutes and can be done at home with basic mechanical skills.
Installation includes:
- Removing existing 8-gram CO2 components
- Installing left and right 12-gram adaptors
- Securing with included hex screws and nuts
- Installing new CO2 tube
- Testing with 12-gram CO2 cartridge
Note: Installation instructions are included with the kit. If you're not comfortable with installation, consult a qualified technician.
Performance Comparison:
| Feature | Standard 8-Gram CO2 | With Byrna Boost (12-Gram) |
|---|---|---|
| Shot Capacity | ~20 rounds per cartridge | ~30 rounds per cartridge |
| Increase | Baseline | +50% more shots |
| CO2 Availability | Specialty 8-gram cartridges | Standard 12-gram (everywhere) |
| Cost | Higher per shot | Lower per shot (bulk available) |
| Training | More frequent CO2 changes | Extended training sessions |
Why 12-Gram CO2 is Better:
Availability:
- 12-gram CO2 is the paintball and airsoft industry standard
- Sold at Walmart, Dick's Sporting Goods, Academy Sports, and thousands of retailers
- Available online from Amazon, eBay, and specialty retailers
- Easy to find in bulk packs (50-count, 100-count)
Cost Savings:
- 12-gram CO2 often cheaper per cartridge when bought in bulk
- More shots per cartridge = lower cost per shot
- Easier to stock up during sales
Performance:
- 50% more shots means fewer interruptions during training
- Extended defense capability without CO2 changes
- More consistent performance throughout cartridge life
Important CO2 Brand Warning:
⚠️ CRITICAL: Byrna does not recommend the use of Crosman brand 12-gram CO2 cartridges in your launcher as they may not puncture correctly. This can lead to:
- Failure to puncture the CO2 cartridge
- Inconsistent performance
- Potential damage to piercing mechanism
Recommended CO2 brands: Use high-quality 12-gram CO2 cartridges from reputable paintball and airsoft brands. Avoid Crosman brand specifically.
Perfect for Training:
The Byrna Boost Adaptor is especially valuable for training. With 50% more shots per CO2 cartridge, you can practice longer without interruption. This means:
- Extended training sessions without CO2 changes
- More rounds for practicing draw, aim, and reload drills
- Lower cost per training session
- Less time changing CO2, more time shooting
Professional Use:
Many law enforcement and security professionals upgrade to the Byrna Boost Adaptor for the increased capacity and CO2 availability. When you need your launcher to perform in critical situations, having 50% more shots and readily available CO2 is a significant advantage.
Who Should Upgrade:
- Frequent Trainers - Get more shots per CO2 for extended practice
- Serious Defenders - 50% more capacity for extended defense scenarios
- Cost-Conscious Users - Save money with cheaper, bulk 12-gram CO2
- Convenience Seekers - Never search for specialty 8-gram cartridges again
- Law Enforcement/Security - Professional-grade capacity and availability
Specifications:
- Product: Byrna Boost Adaptor (12-gram CO2 upgrade kit)
- Compatibility: Byrna SD, EP, HD launchers only
- NOT Compatible: Byrna CL, SDXL, HDXL, LE, TCR, Mission 4
- CO2 Type: Converts from 8-gram to 12-gram CO2 cartridges
- Shot Capacity Increase: 50% (from ~20 to ~30 rounds per cartridge)
- Installation: Easy installation with included tools and hardware
- Kit Includes: Left/right adaptors, CO2 tube, hex keys, screws, nuts
- Reversible: Can switch back to 8-gram if needed
- Weight: 0.2491 lbs
- CO2 Warning: Do not use Crosman brand 12-gram CO2 cartridges
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Disclaimer
Last Updated: 10/12/2025
Welcome to Ungunn.com. Your use of this website and your purchase of any products or services from us signifies your acceptance of the terms and conditions outlined in this disclaimer. By proceeding, you acknowledge that you have read, understood, and agree to these terms.
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Ungunn.com is an authorized dealer of Byrna less-lethal products. Our products are intended for self-defense and recreational use. The use of any self-defense device, including Byrna launchers, carries inherent risks.
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Let customers speak for us
About our recent in-store purchase.... We were very pleased with the store's personnel who took the time to explain procedures and various products and allowed us to experience firing the launcher. UNGUNN has an extensive and comprehensive selection of self defense products and a visit here is highy recommended - even if you're not sure whether or not any of these options are for you. There was no pressure to buy anything and we are happy with what we selected.
I have guns but just the feeling of A non-lethal way it’s amazing and less headaches
If your looking for a airgun that looks real and has good range and a wide variety of round options, then this airgun is perfect. Its loud like a real gun as well so you can even scare off an intruder with just the sound. I'm definitely recommending this to all my family and friends.
I think it's an excellent product and would recommend it to anyone looking for a non lethal alternative to self defense. I've been practicing the kinetic rounds have an unbelievable impact. That alone would take the fight out of most people
Very excited about this purchase. Great quality product. this is a very solid, and very powerful non-letha gun, my wife and I feel safer walking to the park with our son knowing that we can defend ourselves. Customer service was amazing I place my order in 10 minutes I got an email saying that order was ready for pickup.
Tested on Corrugated boxes and went through , tested on 1/4 inch wood and almost went through. I love it
This thing is no joke!!! After testing it in my garage, i feel that it is a viable carry option...and i don't just trust any bullshit gimmick when my life is on the line. After witnessing what the solid projectiles did to the piece of particle board i was using as a backstop??? You can officially label me a "byrna believer". I will be buying a few more in future weeks.
Great product and well made.
The SD feels so comfortable in my hand, I was surprised, even though in didn't exactly know what to expect, on how fast the projectiles move. I plan on more practice soon. Very happy.
My husband and I bought 2 Byrna SD Kinetic kits. He received the black one and I got the pink one. They are similar in feel to a real pistol and are a great option for non lethal self defense. We also purchased lasers, Byrna Max projectiles and holsters. This is a great addition to my arsenal of tasers, batons and pepper spray cans. We live in a suburb of Seattle and have encountered individuals breaking into our automobiles and trying to enter our home. This will be a great deterrent to these encounters in the future. The Byrna launcher is easy to use and maintain and my 85 years young mother loves to practice shoot with it! Get one. It's a great tool for deterring bad situations. I prefer not to own a lethal weapon and this is a viable alternative. Several law enforcement officers have given me positive feedback on these launchers.
Works great. As far as personal protection devices go, I highly recommend the device. My job requires me to travel to many different places throughout the day and it’s nice knowing that I have a non lethal option to protect myself. I have nothing against carrying a lethal option, however most cases that people encounter where they feel threatened can be resolved with a show of force and if necessary, a powerful non lethal option without loss of life.
Perfect for keeping supplies secure, tidy, and organized!
Although I also have the Byrna sling bag for everyday carry (which holds 4 CO2 and 2 tubes of balls), I needed the right product to keep the extra pepper ball tubes and CO2 cartridges handy at home or in reserve.
Byrna offered a great deal on this case at the time of this second purchase.
After I had received my Everyday Carry Starter kit in my first Byrna purchase, I realized that I need more pepper balls, but maybe not yet a whole bottle like the kinetic projectiles.
As a side note, I put sight dots on the Byrna launcher to help in less-than-optimal light conditions, like if I am target shooting in the wetlands outside the boundaries of my apartment complex.
This thing is amazing! I plan to purchase another one!
This seems like a great self defense option, especially with the Live X grade PepperBalls. It packs a big punch and after shooting a post from 30-35? away with a regular strength PepperBall, I walked up to it and immediately had some effects from the PepperBall. I am loading up with the LiveX ones that are 10x strength and feel confident in the device to provide me adequate protection.
This was a great deal. The bag is really nice and at a great deal it self.
The Byrna Advantage
Trusted Less-Lethal ProtectionByrna has established itself as the leader in less-lethal self-defense technology, offering powerful protection without the permanence of firearms. Our launchers provide an effective deterrent that can stop threats at a distance, giving you and your loved ones crucial time and space in dangerous situations.Proven Performance When It MattersEngineered with precision and reliability in mind, Byrna devices are trusted by law enforcement, security professionals, and responsible citizens worldwide. Each launcher is rigorously tested to perform consistently when you need it most.No Firearms License RequiredByrna offers powerful protection without the legal complexities of traditional firearms in most jurisdictions. This means faster access to personal safety for you and your family.Confidence Through TrainingWe don't just sell products—we empower responsible ownership through comprehensive training resources, ensuring you're prepared to use your Byrna effectively and safely.American Innovation, Global ImpactDesigned and supported in the USA, Byrna represents the cutting edge of less-lethal technology, backed by a commitment to customer service and continuous improvement.
- Superior Defense Technology
- Trusted Protection, Proven Results
- Leading the Less-Lethal Revolution
At Ungunn, we want you to be completely satisfied with your purchase. We offer a 30-day free return policy for most items. If you are not entirely happy with your order, we are here to help.
30-Day Free Return Policy
You have 30 calendar days from the date you receive an item to initiate a return. To be eligible for a return, your item must be:
- Unused and in the same condition that you received it.
- In its original packaging.
- Accompanied by the receipt or proof of purchase.
Note: Returns that do not meet these conditions may not be accepted.
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Once you submit your request, our team will review it and send you an email with further instructions and a prepaid return label.
Non-Returnable Items
Due to the nature of certain products, the following items are not eligible for return or refund:
- Byrna Pepper, Max, and BGR Products (including all chemical projectiles).
- All CO2 Cartridges.
- Body Armor and Ballistic Plates.
- Custom or personalized products.
Refunds
Once we receive your returned item, we will inspect it and notify you of the status of your refund. If your return is approved, we will initiate a refund to your original payment method.
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At Ungunn, we are committed to delivering your Byrna products with care and efficiency. We want your shopping experience to be as clear and straightforward as possible, especially when it comes to getting your items to your door.
Shipping at a Glance
Here’s a quick overview of our shipping options:
- ⚡️ Processing Time: Same-day shipping for most in-stock orders placed before 1:00 PM PST.
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We pride ourselves on our fast processing. All in-stock orders placed before 1:00 PM Pacific Time (PST) will be shipped on the same business day.
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Shipping Costs
Shipping costs are calculated at checkout based on the items in your order and your shipping destination.
- Free Shipping: All orders with a subtotal of $100 or more qualify for free shipping.
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Shipping Methods & Carriers
We ship all orders via reputable carriers to ensure your products arrive safely and on time.
- We use a variety of carriers including UPS, FedEx, and USPS. The carrier for your order will be selected based on the size, weight, and destination to provide the fastest delivery time possible.
- Domestic Shipping: We currently ship to all 50 states within the United States.
- International Shipping: We do not offer international shipping at this time.
Order Tracking
- Once your order has been shipped, you will receive a confirmation email with a tracking number and a direct link to the carrier's website.
- Please allow up to 24 hours for the tracking information to update and become active.
Local Pick-Up
We also offer a convenient local pickup option for our customers in the Santa Clarita, California area.
- Your order will be ready for pickup within one hour of being placed during business hours.
- You will receive an email notification when your order is ready for collection.
- Pickup orders can be collected at our physical location: 28048 Bouquet Canyon Rd #5, Santa Clarita, CA 91350.
Important Notes
- Stock Levels: Our website features live stock counts. If an item is shown as in stock, it is available to be shipped.
- Exclusions: We currently do not ship to P.O. Boxes or APO/FPO addresses.
- Damages: Please inspect your package carefully upon arrival. If an item arrives damaged, please contact us immediately at sales@ungunn.com with photos of the damage so we can assist you.
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If you have any questions about shipping, lead times, or anything else, please don't hesitate to reach out to our team at sales@ungunn.com or call us at (888) 310-0833.
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