Cousins Pro Shop
Long Island's Premier Paintball & Airsoft Retail Store
2150 Deer Park Ave, Deer Park, NY 11729
Since 1987
With almost 40 years in the business, Cousins has been at the forefront of the paintball and airsoft industry. Our dedication to customer service has been the driving force of our growth and longevity. Since 1987, Cousins has been a trusted name, evolving from a single retail shop in West Islip into one of the nation's leading paintball brands. From top-rated playing fields and tournaments to cutting-edge product lines and pro-level equipment, we've been part of every level of the game.
Shop Online at ShopCousins.com →Gear for Every Player
Paintball Markers
From beginner starter packages to pro-level tournament markers. Planet Eclipse, Dye, Empire, and more.
Airsoft Guns
AEGs, gas blowback pistols, bolt-action snipers, and DMRs. Lancer Tactical, G&G, KWA, and more.
Masks & Goggles
Full face protection from JT, Dye, Virtue, and Empire. Thermal anti-fog lenses for clear vision.
Tanks & Air
HPA, CO2, and compressed air tanks. Fills and hydro testing available in-store.
Paintballs & BBs
Field paint, tournament paint, and biodegradable airsoft BBs. Bulk pricing available.
Tactical Gear
Vests, chest rigs, gloves, pads, barrel covers, ammo carriers, and more.
Full-Service Paintball & Airsoft Repair
At Cousins Paintball, we've been a trusted name in the industry since 1986. With decades of hands-on experience, our expert technicians specialize in paintball and airsoft gear repair.
Authorized Tech Centerfor every major paintball manufacturer including DYE, Empire, Tippmann, Virtue, DLX — and a Master Tech Center for Planet Eclipse.
Nationwide Service: Can't make it to our shop? No problem — just ship your gear to us! We regularly receive and service paintball markers and accessories from players and teams all over the country. Contact us before sending your equipment and we'll handle the rest.
CO2 Tank Fills & Exchanges
Long Island's spot for fast CO2 refills — paintball, kegerator, SodaStream, and more. Walk in, we fill it, you're out.
Need a CO2 fill? Our Deer Park pro shop fills and exchanges CO2 tanks of all sizes. Whether it's a paintball tank, a kegerator cylinder for your home bar, a SodaStream bottle, or CO2 for your planted aquarium, our team gets you filled quickly and correctly. No appointment needed — just bring your tank in during store hours.
🍺 Kegerator & Homebrew
Keep the beer flowing. We fill and exchange kegerator CO2 cylinders in common sizes — 2.5 lb, 5 lb, 10 lb, and 20 lb. Perfect for home bars, homebrewers, and draft systems. Beverage-grade CO2 available for anything you’re drinking.
💧 SodaStream & Sparkling Water
Stop paying to swap at the store. Bring your SodaStream cylinder to us for a refill and save over exchange programs. We handle standard SodaStream bottles and paintball-tank adapters for high-volume sparkling water fans.
🎯 Paintball & Airsoft
Of course — we’re a paintball shop. Fast CO2 and HPA (compressed air) fills for paintball and airsoft tanks while you wait. Hydro testing available for expired tanks.
Good to know: CO2 tanks have a hydro-test date stamped on the shoulder and are typically fillable for 5 years after that date. If your tank is expired, ask us about an exchange. Bring your tank in and our team will check it, confirm the right grade, and get you filled.
CO2 Fill Questions
We fill and exchange common sizes including paintball tanks, SodaStream cylinders, and kegerator tanks from 2.5 lb up to 20 lb. Bring yours in and we’ll take care of it.
Yes — for anything you’re drinking, you need beverage-grade (food-grade) CO2, and we’ve got you covered. Never use paintball-grade CO2 for food or drinks.
No. CO2 fills are walk-in during store hours at our Deer Park location. Most fills are done while you wait.
CO2 tanks have a hydro-test date and are fillable for about 5 years after. If yours is expired, ask us about an exchange or hydro testing.
Pricing depends on tank size and type. Call us at 631-243-1100 for current fill and exchange rates.
2150 Deer Park Ave, Deer Park, NY 11729. Easy to reach from across Long Island.
Come See Us
Saturday: 10am–6pm
Sunday: Closed
Deer Park, NY 11729
Ready to Gear Up?
Shop online or visit our Deer Park location