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



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


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

Whether you're hitting the range for some target practice or gearing up for self-defense, trust Warne M&P 9mm or .40 Mag Extensions to give you the edge you need. With increased capacity and easy-to-grab finger grooves, you'll be ready for whatever the shooting range throws your way.

The 3307 Blue S&W M&P Mag Extension adds 3 rounds of 9mm or 2 rounds of .40 to your S&W M&P Factory Magazine.

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

With firearms-specific fitments for best-in-class fit/compatibility, you can have confidence in every shot with Warne, designed for shooters, by shooters. All Warne products come with a lifetime warranty. No receipt, no warranty card, no package - no problem!

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