California Proposition 65 Warning
This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.
Agency Arms
+5 Magazine Extension
$65.00
Out of Stock
Agency Arms +5 Magazine Extension, Fits Sig Sauer P320 Magazines, Anodized Finish, Black, Aluminum Construction BP-320-BLK
Key Details
Brand
Agency Arms
Manufacturer Part Number
BP-320-BLK
UPC
SKU
AGEBP-320-BLK
Current Stock
0 available
Quantity Updated
May 13, 2026 6:40 PM
Purchase Requirements
- California compliance or distributor restriction review may apply.
- Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description
The Agency Arms P320 9mm +5 base pad for 17rd magazines. This base pad is specifically designed for the 17rd magazine and is compatible with the Agency Arms X-Series Magwell and the factory magwell from SIG. (THIS BASE PAD IS NOT COMPATIBLE WITH THE AXG MAGWELL)
Features
- Machined from 6061 MIL-A-8625 Type 3 Hard Anodized
- Dot Matrix Panel for Marking
- Chrome Silicon Alloy Spring
- Increases capacity by 5 rounds (9mm), 4 round (.40s&w & .357)
- Extended Ledge for one-handed manipulations
- Made in the USA
Specifications
Manufacturer:
Agency Arms
Manufacturer Part #:
BP-320-BLK
Model:
+5 Magazine Extension
Model (Alt):
SIG Sauer P320
Finish:
Anodized
Type:
Magazine Extension
