Springer Precision 140mm extended capacity basepads for Sig Sauer P320/P250 9/40 21 round magazines are CNC machined from aluminum and hard anodized for a long service life. An additional round can be added if you choose the Grams follower options. The unique locking mechanism allows a very solid attachment with a discrete set screw. They fit the USPSA 140mm magazine gauge. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove.
Now compatable with 15rd, 17rd, and 21rd mags. Also compatable with our X5 magwell with 17rd mags.
*We include a 1/16 hex driver that makes installation and removal a breeze.
*Not compatible with flanges that fold into the magazine body (P250, P320 Subcompact 12rd).
Due to design variations, Springer Precision cannot guarantee compatibility with any other manufacturer’s aftermarket magwell, unless otherwise specified.