The Shield Arms SIG P320 Magazine Extension adds 5 rounds of 9mm to both 15 round and 17 round OEM SIG P320 magazines, fits both generation 1 and generation 2 magazines. Our unique, easy access floor plate design allows you to easily access the spring and follower without having to remove the extension from the magazine body. Comes with a 100% lifetime warranty, and the Shield Arms Spring for Life guarantee.
- Unique easy access floor plate design to service or clean the magazine body without the need to remove the magazine extension from the magazine body.
- Index cuts on the extension body to increase grip when coming out of a magazine pouch.
- Machined from billet 6061 aluminum
- Type 2 anodized
- Adds 5 rounds to both 15 and 17 round SIG P320 9mm magazines
- Fits OEM SIG P320 magazines only, generation 1 and generation 2
- Proudly made in the USA
- Fits most aftermarket flared mag wells
- Lifetime warranty
- Installation Instructions
Please check your state and local laws regarding magazine capacity restrictions.