Product Description
Sig Sauer P365 21-Round Extended Magazine – Maximum Capacity, Same Trusted Reliability
Get more firepower without compromising reliability with the Sig Sauer P365 Extended 21-Round Magazine. Designed specifically for the P365, P365X, and P365XL platforms, this high-capacity magazine boosts your round count to 21+1, making it perfect for range sessions, competition, or serious defensive applications.
Featuring a matte black steel body, polymer baseplate, and witness holes for quick round checks, this mag offers smooth feeding and flawless function—just like you’d expect from factory Sig Sauer gear.
Features:
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Capacity: 21 rounds of 9mm
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Compatible with P365, P365X, and P365XL models
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Steel construction with matte black finish
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Extended grip for improved control and comfort
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Reliable feed spring and follower for consistent cycling
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Sig Sauer OEM quality – built for performance and durability
Whether you're looking to extend your range time or gain an edge in a defensive scenario, the Sig Sauer 21-Round Extended Magazine gives your P365 the high-capacity upgrade it deserves.
