




We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
The TPO 21mm Picatinny Rail Base Adapter is a lightweight, rugged mounting solution designed to expand the versatility of standard firearms barrels. It clamps securely to barrels with diameters ranging from 0.67 to 1.18 inches, and it adds a top Picatinny rail for quick attachment of flashlights, red dots, lasers, or other compatible accessories. The result is a modular platform that remains unobtrusive while you customize your setup for different tasks or environments.
Crafted for real-world use, this mount pairs simple, reliable hardware with a sturdy aluminum body. Its matte black anodized finish resists scratches and weathering, helping maintain a clean profile even after frequent handling or exposure to outdoor elements. The combination of a compact form and mid-range durability makes it a practical option for users seeking flexibility without sacrificing balance or control.
Manufactured from durable aluminum, the base mount combines strength with lightness. The three-screw design distributes clamping force evenly, helping prevent slipping even under dynamic movement. The matte black finish not only looks sleek but also adds a layer of protection against wear and moisture, keeping attachments aligned and ready for action.
To install, wrap the clamp around barrels with a diameter between 17 mm and 30 mm (0.67 to 1.18 inches). Once secured, the top Picatinny rail remains aligned for consistent aiming with your preferred sighting devices or illumination tools. This setup is well-suited for field use, range sessions, and adaptable configurations where quick accessory changes are valuable.
Q: What barrels does the TPO 21mm Picatinny Rail Base Adapter fit?
A: It fits cylindrical barrels from 0.67 to 1.18 inches (17–30 mm), suitable for a range of setups.
Q: What is included in the package?
A: Includes 1 x 5-slot barrel mount, screws, and an Allen wrench.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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