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NDZ Performance
NDZ Performance Magazine Base Plate with Finger Extension for Sig Sauer P365 (*LZ) - Does Not Fit Sig P365XL
Choose Options$27.99 - $30.99 -
On Sale!
NDZ Performance
NDZ Slim Carry Magazine Plate for Sig Sauer P365, P365 XL, P365 SAS V2
Choose Options$10.50 - $14.69 -
NDZ Performance
NDZ Magazine Base Plate with Finger Extension for Sig Sauer P365 .380 ACP (*LZ)
Choose Options$27.99 -
NDZ Performance
NDZ for Sig Sauer P365, P365 XL, P365 SAS Slim Carry Magazine Plate, Aspis Cut
Choose Options$21.99 - $58.99 -
Pearce Grip
Pearce Grip Finger Grip Extension for Sig Sauer P365
Add to Cart The item has been added$9.95 -
Sig Sauer
Sig Sauer P365 P365XL Magazine Floor Base Plate for 15 Round Magazines, 2700136-R
Add to Cart The item has been added$14.99 -
Sig Sauer
Sig Sauer P365 12 Round Extended Magazine Floor Plate, 8900097
Add to Cart The item has been added$14.99 -
NDZ Performance
NDZ for Sig Sauer P365, P365 XL Heavyweight Brass Slim Carry Magazine Plate, Aspis Cut
Choose Options$27.99 - $30.99 -
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NDZ Performance
NDZ for Sig Sauer P365, P365 XL Heavyweight Brass Slim Carry Magazine Plate (*LZ)
Choose Options$27.99 - $30.99 -
NDZ Performance
NDZ for Sig Sauer P365 Trump Magazine Plate with Finger Extension
Choose Options$33.99 -
Sig Sauer P365 Magazine Base Plates
Slim Carry Plates, Finger Extensions, and OEM Replacements
Browse Sig P365 magazine base plates from NDZ Performance, Pearce Grip, and Sig Sauer. The selection includes Slim Carry plates, finger extensions, and OEM replacement floor plates, with aluminum, brass, and polymer options across the range.
Start with the plate profile you need: Slim Carry designs offer a low-profile shape, while finger extensions add a resting surface for your pinky. Compare the material, finish, and design alongside compatibility with your magazine and grip module. A longer base plate does not necessarily add ammunition capacity.
For a standard P365 with a 10-round magazine, the NDZ 9mm finger extension and NDZ .380 ACP finger extension are separate products. Match the listing to your caliber; the 9mm version excludes P365X and P365 XL models, and the .380 version excludes 9mm models and 12-round magazines.
Select NDZ plates offer color finishes and optional laser engraving. Available finishes and personalization choices are shown on each product page.
(*LZ) means that this product is capable of being laser engraved for personalization.
FAQs
A base plate closes the bottom of the magazine. A finger-extension base plate also adds a resting surface for your pinky. The NDZ 9mm and .380 finger extensions linked above retain factory magazine capacity; extending the grip does not mean adding rounds.
No. Fitment depends on the plate, magazine design and capacity, caliber, and grip module. For example, the NDZ 9mm finger extension fits standard P365 10-round magazines and excludes P365X and P365 XL models. The aluminum Slim Carry listing specifies old-design 10-round and 12-round magazines. Match these details before ordering.
Install steps vary by part. NDZ recommends having parts installed by a certified armorer or qualified gunsmith.
Select NDZ base plates offer different color finishes and optional laser engraving. Products marked (*LZ) support laser engraving; available finishes and customization choices are shown on the individual listing.