SIG P320 17-Round Magazine Extension (+5)

This is an Agency Arms +5 base pad for SIG Sauer P320 magazines. It’s machined aluminum with an anodized finish and built to give you more capacity plus a stronger, more controllable base for reloads and hard use. Pick your color, install it right, and then actually function test it like an adult.

Fitment

• Fits SIG Sauer P320 17-round magazines
• Designed to add +5 capacity on the correct magazine body
• Material: aluminum construction
• Finish: anodized
• Assumption to verify: this listing is intended for full-size 17-round P320 magazine bodies, not compact or reduced-capacity versions

Does NOT fit

• Does not fit reduced-capacity P320 magazines
• Assumption: does not fit compact-length P320 magazines unless the manufacturer specifically lists that compatibility
• If your P320 mags are aftermarket or modified, verify baseplate geometry before ordering

<h2 style="color:#1357c5;