Springer Precision Sig P320 9mm +10 extended capacity base pads are CNC machined from aluminum and hard anodized for a long service life. This base pad includes with an extra power spring to use with your follower. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw. They are specifically designed to work with Springer Precision mag wells. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove. Includes a .050 hex driver that makes installation and removal a breeze. There will be a gap between the base pad and frame if used with a compact model. Red 2.474oz

The Springer Precision FASTMAG coupler is designed by shooters for shooters of the SIG MPX. These are made from high quality aluminum and hard anodized to provide an ultra durable platform to support the MPX magazines. Our coupler are easy to remove and clean. Whether it is for duty use, competition, or recreation, this is a great addition to your MPX. Blue 2.088oz

*** For 20 and 30 round MPX magazines ONLY.

THEY WILL NOT FIT THE 10 ROUND MAGS.

The Springer Precision FASTMAG coupler is designed by shooters for shooters of the SIG MPX. These are made from high quality aluminum and hard anodized to provide an ultra durable platform to support the MPX magazines. Our coupler are easy to remove and clean. Whether it is for duty use, competition, or recreation, this is a great addition to your MPX. Red 2.088oz

*** For 20 and 30 round MPX magazines ONLY.

THEY WILL NOT FIT THE 10 ROUND MAGS.

Spring Precision Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .25" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Red. 0.80 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211B, square hole type.

Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .375" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Blue. 1.08 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211, square hole type.

The Springer Precision FASTMAG coupler is designed by shooters for shooters of the SIG MPX. These are made from high quality aluminum and hard anodized to provide an ultra durable platform to support the MPX magazines. Our coupler are easy to remove and clean. Whether it is for duty use, competition, or recreation, this is a great addition to your MPX. Black 2.088oz

*** For 20 and 30 round MPX magazines ONLY.

THEY WILL NOT FIT THE 10 ROUND MAGS.

Springer Precision Sig P320 9mm +10 extended capacity base pads are CNC machined from aluminum and hard anodized for a long service life. This base pad includes with an extra power spring to use with your follower. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw. They are specifically designed to work with Springer Precision mag wells. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove. Includes a .050 hex driver that makes installation and removal a breeze. There will be a gap between the base pad and frame if used with a compact model. Blue 2.474oz

Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .375" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Red. 1.08 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211, square hole type.

Spring Precision Sig P320 9/40 extended base pads are CNC machined from aluminum and hard anodized. This lengthens the magazine .25" to make for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. Blue. 0.80 OZ Round hole.

These pads use the old style round nipple-style locking floorplate. Newer generation magazines have a square-style locking floortab/basepad. If you have this style, you need SP0211B, square hole type.

This basepad is designed by shooters for shooters for the SIG MPX magzine and can add up to 10 rounds in 9mm. These are made from high quality aluminum and hard anodized to provide an ultra durable platform to support the MPX magazines. Our extentions are easy to remove and clean. Whether it is for duty use, competition, or recreation, this is a great addition to your MPX. For use with the 20 and 30rd mags only. Blue 2.856oz

We now offer an extra power magazine spring for the MPX extensions. It is not necessary for normal feeding and functioning, however, it may be necessary for slide lock functionality after last shot fired.

***DO NOT USE THE BOTTOM PLATE ON YOUR MAGAZINE SPRING.***