Current Top Sellers
Sig Sauer P320 9mm & 40 S&W +6 Base Pad Extension by Henning
Henning Group's Sig P320 Magazine Extension Kit is perfect for extending your Sig Sauer P320 magazine with 6 more rounds; whether it is 9mm or 40 S&W. It will work on 17 round 9mm, 21 round 9mm, 14 round 40S&W or 18 round 40S&W magazines! They were designed to fit the USPSA gauge for Limited and Carry Optics divisions. Attached to the factory 17 round magazines they extend the overall length to 141.25mm (5.56").
So if you are looking for an extension for competition, every day carry or law enforcement, these extensions are super easy to install.
For 9 mm you will increase from 17 rounds to 23 rounds on a standard length magazine, and from 21 to 27 on an extended length magazine.
For 40 S&W you will increase from 14 rounds to 20 rounds on a standard length magazine, and from 14 to 20 on an extended length magazine.