This magazine base pad extension adds four (4) rounds to standard capacity .40S&W magazines for the Sig Sauer P226 platform. Designed for shooters who need additional magazine capacity without switching to a longer magazine body or modifying the firearm. The dimpled bottom surface provides tactile identification, reducing fumble time during administrative reloads or stage prep.
Compatibility
- Sig Sauer P226 (.40S&W) – standard capacity factory magazines only
- Does not fit 9mm or .357SIG magazines
- Not compatible with P229, P220, or P320 magazines
- Not for use with aftermarket or extended magazine bodies
Key Features
- +4 round capacity increase over factory .40S&W P226 magazines
- Dimpled base pad bottom for tactile identification in low-light or under stress
- Direct replacement – no permanent modification to magazine or pistol
- Constructed from impact-resistant polymer
- Retains factory magazine catch engagement
Install Difficulty
Level 2/5 – Requires a punch or small flathead screwdriver to depress the magazine spring retainer. No permanent modification. Estimated install time: 3–5 minutes per magazine.
FAQ
Will this fit 9mm P226 magazines?
No. This base pad is designed specifically for .40S&W P226 magazines. The 9mm magazine body dimensions and spring geometry differ, and this pad will not seat correctly.
Does it require a different magazine spring?
No. The included spring from a standard capacity .40S&W P226 magazine is sufficient to feed the additional four rounds reliably. No aftermarket spring upgrade is necessary.
Can I use this with a +2 or +5 extension?
No. This pad is intended only for standard capacity .40S&W P226 magazines. Stacking extensions or using with extended magazine bodies may cause feed issues or damage the magazine.
Shipping & Warranty: Ships within one business day via USPS Priority. Limited lifetime warranty against manufacturing defects. Not available for sale in California, Oregon, Rhode Island, or Washington.
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