Canik 140mm Basepad for 15/18rd Magazines by Springer Precision
New for the Canik 15-round and 18-round magazines are Springer Precision 140mm magazine extensions, CNC-machined from aluminum and hard-anodized for long service life. The extension lengthens the magazine and adds rounds. The unique locking mechanism provides a very solid attachment, with simple backing out via the discrete set screw. They fit the USPSA 140mm magazine gauge. The unique attachment provides a low-profile, sleek design that is very stable and easy to remove. Adds an additional 3 rounds to the 18-round mags, or 4 rounds to the 15-round mags.
*Only 140mm in overall length when the extension is installed on Canik 18-round mags*
Magazine Spring & Follower Options
This Springer Precision Canik 140mm Basepad for 15/18-Round Magazines is available with several spring and follower options depending on your intended setup. Springer Precision recommends using an extra-power magazine spring with this extension because factory springs can be inconsistent and unreliable on magazine extensions.
Want to retain slide lock? Select the Springer Precision Extra Power Magazine Spring and reuse your factory Canik follower. This is the recommended setup for customers who want to retain last-round slide lock.
Important: The MBX Ultra Max competition spring and follower kit is designed to maximize usable magazine capacity and does not retain last-round slide lock.
- No Spring: Basepad only. This option does not include a replacement magazine spring. Because factory magazine spring reliability varies with extended basepads, it is recommended to use an extra power spring with this extension.
- Springer Precision Extra Power Spring: Uses your factory Canik follower (factory follower not included). This is the recommended option if you want to retain last-round slide lock. View Springer Precision spring details & compatibility.
- MBX Ultra Max Spring & Follower: Competition spring and follower setup designed to maximize usable magazine capacity. View MBX Ultra Max details & compatibility.
Before selecting an option: Review the linked product page for specific magazine compatibility, capacity information, installation, and other product-specific details.
1.339oz
*We include a 1/16 hex driver that makes installation and removal a breeze.
Not compatible with Canik METE magwell.

**Disclaimer: As with all competition-gear changes, always make sure you test and check your gear before you take it to a competition setting. With 140mm/170mm magazine configurations, especially, check the magazine in a USPSA 140mm/170mm gauge to make sure it fits. With mass-produced items like magazines, they can sometimes vary slightly from one to the next, often in the magazine lips that connect to the magazine extension/basepad.