Springer Precision SIG P320/P250 9/40 21 round magazine 140mm extended capacity base pads 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 simple backing out of the 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. * We include a .050 hex driver that makes installation and removal a breeze. .448oz
FOR THE 21 round magazines ONLY
*Not compatible with flanges that fold into the magazine body"
**Disclaimer: As with all competition geared changes, always make sure you test and check your gear before you take it to a competition setting. With 140mm/170mm magazine configurations especially, check the magazine in a USPSA 140mm/170mm gauge to make sure it fits. With mass produced items like magazines, sometimes they can vary slightly from one to the next, often in the magazine lips that connect with the magazine extension/basepad.
Excellent 140mm baseplate
As advertised, these fit the mag gauge perfectly, unlike the stock base pads. The mags required a little bit of filing, no bid deal, they fit perfectly after the minute or so of fitting. With these base plates alone, you can easily fit 22 rounds in the mags, 23 if you also use a grams spring and follower kit. If the mags didn't need any fitting, they'd be a 5 star, easily, very happy with these though and I'll probably end up adding them to all my mags.