DO YOU BUY USED AIRSOFT REPLICAS?

Yes, we buy back certain used airsoft replicas and equipment! However, the evaluation must be done in-store. Our team will test the replica on-site to verify its functionality and overall condition before making you an offer. If it’s accepted, the value will be converted into store credit, usable on all your future purchases. Simple, quick, and convenient!

DO YOU OFFER REPAIRS AND MAINTENANCE ON REPLICAS?

We offer a fast and efficient repair and maintenance service — so reliable that other stores trust us to repair their replicas. Our expert Martin, with over 13 years of experience in the field, is known for his high-quality work and quick turnaround. A technician will clearly explain all available options, estimated turnaround times, and associated costs before any work begins.

WHAT IS YOUR WARRANTY AND RETURN POLICY?

We offer a fast and efficient repair and maintenance service — so reliable that other stores trust us to repair their replicas. Our expert Martin, with over 13 years of experience in the field, is known for his high-quality work and quick turnaround. A technician will clearly explain all available options, estimated turnaround times, and associated costs before any work begins.

DO YOU OFFER CUSTOM UPGRADES AND MODIFICATIONS?

Yes! At District Airsoft, we offer a complete upgrade and customization service for your replicas — both internally and aesthetically. Whether you’re looking to improve range, accuracy, or rate of fire; reinforce your gearbox for reliability; or personalize the look of your replica... Our head technician Martin (with over 13 years of experience) is here to advise you and handle the work. We also have access to several specialized suppliers that are rarely available in Quebec, such as FPS Softair, Quantum, Maxx Model, Silverback, Retro Arms, and many more. This means you’ll have access to high-performance parts to optimize your replica exactly to your needs.

TALK ABOUT DISTRICT AIRSOFT AND EARN STORE CREDITS TO EQUIP YOURSELF!

At District Airsoft, you can earn store credits to spend in our shop every time a sale is made through your personalized link or promo code. Here’s how it works: Apply here: https://af.uppromote.com/districtairsoft/register. We review your application and ask for a solid reason (e.g. streamer, YouTuber, influencer, or someone active in the airsoft community). If your application is accepted, you’ll receive a personalized link and promo code. Every sale made through your link or code earns you x% of the total amount in District credits. These credits can be used directly in our online store. Cookies remain valid for 5 days after the click. No minimum sales required to participate. Please note: We reserve the right to refuse any application or deactivate a code at any time, without affecting the credits you’ve already earned. This program is intended for those who genuinely want to share District Airsoft and contribute to the community.

4UANTUM ANTI-LEAK SEALANT in an easy-to-use applicator for effective sealing solutions

4UANTUM ANTI-LEAK SEALANT FOR GBB AIRSOFT

In stock

$15.00 CAD

✅ Fast & Tracked Shipping / Free over 250$+ (prov. rates)
✅ 30-day return policy for peace of mind
✅ Secure checkout with encrypted payment

Product Description

The 4UANTUM ANTI-LEAK SEALANT is a specialized high-viscosity compound designed for the maintenance and repair of airsoft equipment. This 4UANTUM ANTI-LEAK SEALANT is ideal for preventing or fixing leaks caused by faulty O-rings and rubber seals in pressurized systems.

FEATURES:

SUPERIOR SEALING: The high-viscosity formula ensures excellent adhesion, reinforcing seals and filling irregularities between valve components.
MATERIAL PRESERVATION: With its high silicone content, this 4UANTUM ANTI-LEAK SEALANT preserves the suppleness of rubber parts, significantly extending their operational lifespan.
GBB OPTIMIZATION: When applied to GBB magazines, it penetrates critical areas to ensure magazines maintain a full gas charge for longer periods.
PREVENTATIVE CARE: Can be used both as a repair solution for existing leaks and as a preventative treatment to ensure long-term reliability.

SPECIFICATIONS:

PRODUCT: 4Uantum Seal.
TYPE: High-viscosity sealing compound.
PRIMARY USES: GBB magazines, valve seals, and rubber O-rings.
KEY INGREDIENT: High-content silicone.

District Airsoft ships everywhere in Canada (no international shipping) with an estimated processing time of 1–3 days.

Estimated Delivery Time: 3–9 days, depending on the province.
Shipping Fees: Fees are fixed per province.
Free Shipping: Available for orders of $250 or more (region-dependent).
Carriers Used: Purolator, UPS, FedEx, Canpar and many more !
Tracking: Tracking information is provided via email.
Signature Required: For select products and certain delivery addresses ( busy city / appartment), a signature on delivery is required to prevent theft. In some cases, this is also mandated directly by the carrier and is outside our control.

Please verify your shipping address carefully before checkout. Report any damage within 48 hours of receipt. District Airsoft is not responsible for delays caused by weather, carriers, or peak periods.

For more information: Shipping Policy.

Buying used doesn't mean buying a risk. Every pre-owned replica sold by District Airsoft goes through the same return and warranty process as our new products, and is backed by our standard 30-day store warranty.

Before any used replica is listed for sale, it passes through our in-house tech shop where it is:

Inspected for function, wear, and internal condition
Cleaned inside and out
Repaired or serviced as needed to meet our quality standards

We hold every used replica to the same high standard as a brand-new one before it ever reaches your hands. If something isn't right, you're covered exactly like you would be with a new purchase — same 30-day warranty, same in-store process.

Questions about a specific used item? Contact us at boutique.districtairsoft@gmail.com or 450-760-7185.

[Full details in our Refund Policy]

All replicas — new or used — include a 30-day store warranty covering manufacturing defects and major malfunctions.

Need service after that? District Airsoft offers in-house repairs and upgrades from certified techs, even outside the warranty window.

In-store warranty claims: Bring your invoice + complete product
Post-warranty repairs: Available as a paid service
Tech consultations: Ask us before you buy if you're unsure about compatibility

Questions about a specific used item? Contact us at boutique.districtairsoft@gmail.com or 450-760-7185.

[Full details in our Refund Policy]

Every product sold by District Airsoft is sourced directly from authorized distributors and manufacturers. No knockoffs, no grey-market guesswork.

Verified suppliers — VFC, G&G, Well Pro, and other trusted brands
Pre-shipment QC on all new arrivals
Used items hand-inspected by our tech team before listing

Buy with confidence — what you see is exactly what you get.

Out of stock or want to pre-order?

Use the Back in Stock Alert / Pre-Order button located below the Buy button.

By clicking it, you’ll automatically receive an email notification when this item is back in stock.

We’ll also contact you directly to confirm whether you’d like to pre-order this product as part of our next order.

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4UANTUM ANTI-LEAK SEALANT FOR GBB AIRSOFT

Product Description

Out of stock or want to pre-order?

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