S&W M&P 9/40, Black, Capacity +3/9mm, +2/.40



Not available for shipment to CA, CO, CT, D.C., HI, MD, MA, NJ, NY, WA, VT
  • +3 Capacity.
  • Black
Current Stock:

Out of stock

Key Features:
Best Uses:


Available in Several Colors.
Firearm Specific Fitment.
Designed and MADE IN USA

Designed specifically for M&P 9mm and M&P .40 magazines, these extensions are engineered to integrate with your firearm seamlessly. And with firearms-specific fitments for best-in-class compatibility, you can have confidence in every shot with Warne, designed for shooters, by shooters.

Adding 3 rounds of 9mm and 2 rounds of .40, and an ergonomic finger grove, adding performance in competition or when you need it most, the Warne M&P mag extensions can give you the edge by saving you time on reloads.

Fits M&P, 9mm 17 round factory magazines. Magazine NOT included.

WARNING & DISCLAIMER: Not for sale, possession, or use in any jurisdiction where the Warne® Handgun Magazine Extensions would violate applicable law or expand a firearm magazine capacity beyond the applicable limit. It is the responsibility of purchaser and user of the Warne® Handgun Magazine Extensions to know and comply with applicable firearms laws, including magazine capacity limits or modification of firearms. By acquiring Warne® Handgun Magazine Extensions, purchaser represents that Warne® Handgun Magazine Extensions can be lawfully used in purchaser’s state or local jurisdiction. Warne specifically disclaims all liability related to any possession, transfer (sale, gift, exchange or otherwise), use, or modification of this product that violates or would cause violation of applicable law.  Warne is not responsible for any harm or damage from misuse or modification of this product or from malfunction due to modification of any goods by use of this product contrary to specific Warne provided instructions and specifications.


Part Number:
TBD oz
M&P, 9mm 17 Round Factory Mags