For defending a home or property, reach and capacity matter. The Byrna Mission 4 Rifle Kit is a CO2-powered, less-lethal defense launcher in a shoulder-fired rifle format — a serious home-defense option for those who want to stop a threat from a distance without a lethal decision. Byrna notes the Mission 4 platform was previously offered only to law-enforcement agencies and has since been re-engineered for civilian performance and capacity.
Why it works. The Mission 4 launches .68 caliber projectiles using a large 88-gram CO2 cartridge, with an effective range of up to 100 feet and a manufacturer-rated muzzle velocity averaging 325 fps. It is fully pneumatic — no batteries, no electronics to fail. The rifle format gives you a shoulder stock for stability, folding front and rear sights, a foregrip, a durable magnesium receiver, an AR-15-style M-LOK shroud, and a quad Picatinny rail for lights or optics. A gas on/off slide valve lets you disconnect the CO2 source when the launcher is stored.
What's in the kit:
(1) Mission 4 Launcher
(1) CO2 adapter + CO2 stock
(2) 19-round coupled magazines (38 rounds on hand)
(2) 88-gram CO2 cartridges
(1) Accessory kit (spare o-rings, allen key, lubricant)
(1) Compact travel bag
Honest framing. This is a *less-lethal* device, not a *non-lethal* one — it reduces risk compared to a firearm but is not risk-free and is not a guaranteed stop. Projectiles are not included in this kit — you'll choose and add .68 caliber rounds separately (kinetic, training, or chemical). CO2 and projectiles are consumables. And a defensive tool is only as effective as the training behind it.
Legal & responsible use. Byrna states the Mission 4 is not a firearm and needs no permit; you must be 18 or older to purchase. It cannot be shipped to California or New York, and city or county rules elsewhere can be stricter — check your local law. Use it lawfully, for defense only, and store it securely away from children.
Best for homeowners and property owners who want a less-lethal home-defense layer, rural and acreage residents, and preparedness-minded households. Backed by Total Armor Security's 30-day satisfaction guarantee, with free shipping on orders over $100.
SPECS
Type | Less-lethal CO2 launcher — rifle format
Projectile | .68 caliber (sold separately)
Propellant | 88-gram CO2 cartridge
Muzzle velocity | 325 fps average / up to 365 fps (manufacturer)
Energy | ~14.7 J avg / 18.5 J max; 39.5 J·in⁻² energy density (manufacturer)
Effective range | Up to 100 ft
Magazine capacity | Two 19-round coupled magazines (38 rounds)
Shots per CO2 | ~55 (at room temperature)
Operation | Fully pneumatic — no batteries/electronics
Receiver | Magnesium
Rails / mounting | Quad Picatinny, AR-15-style M-LOK shroud, integrated sling mounts
Sights | Folding front and rear
Safety | Two-position external safety switch
Dimensions | 31" L × 7.5" H × 2.3" W
Color | Black (anodized orange charging handle & barrel accents)
