* ALL SALES ARE FINAL WITH BLEM-VENTORY MAGWELLS *

* EVERY blemished base pad will have a small lightning bolt lasered on it to indicate that it is from BLEM-VENTORY. *

*Please contact us for any questions about the aesthetic condition, or leave an order comment with your preference. We will do our best to accommodate any requests*

The pin set screws are set with Loctite® at the specific tension we recommend, and will generally never need an adjustment. Tightening the base pad screw is not recommended and may be difficult because the screw is set with Loctite®; trying to force the set screw to turn could result in stripping the screw. We do not warranty base pads for stripped heads on set screws or pins lost in result of tampering with the set screw.

Using the table below, you will be able to identify what parts you will need for your given pistol depending on what division you want to shoot.

To use this Table: First, look for what division in which you want to shoot. Second, find the the Tube Length. Third, locate what caliber are you shooting. Once you have found all of identified what parts you are using, you will then be able to see which basepad, spring and follower you will need. You will also be able to tell what capacity you achieve with the given configuration.

Base Pad SV/STI 3mm

*Not for sale to California and Washington residents. A courtesy email will be sent to CA/WA residents who place an order for a base pad that has the capability of taking a magazine past ten rounds. Ultimately a refund will be issued unless the purchaser is active Law Enforcement. CA/WA civilians can only purchase base pads listed on the following link - https://tarantacticalinnovations.com/magazine-extensions/california-compliant/

*Remove the metal insert at the bottom before installation*

The TTI Base Pad for STI, SV, SPS, & Rescomp Magazine Tubes Use the TTI Base Pad with the TTI spring and TTI Follower for maximum capacity.

• This Patented push pin design is indestructible and will not come off until you are ready to remove it. One Piece construction made from solid aluminum, will not break or come loose, which is essential in the heat of competition. This base pad allows the magazine to be disassembled in seconds with one hand and no tools. You don’t have to worry about losing small parts or specialty tools to disassemble it.
• This product is used by World and National Pistol and 3-Gun Champions! Rob Leatham, Max Michel, Shane Cooley, Travis Tomasie, Blake Miquez, Jessie Duff, Nils Jonasson, Chris Tilley, JJ Ricaza, Manny Bragg, Shannon Smith, Daniel Horner, Keith Garcia, Mike Viogt, Maggie Reese, Dave Pruitt, Phil Strader, Mike Seeklander and Ron Avery, Bennie Cooley.
• Weighs .3 oz

3mm for SV/SPS/Rescomp 140/170mm magazines.

• Rescomp 21rds in 140mm 40S&W
• 23rds in 140mm 38/9mm.
• 29-30rds in 170mm 38/9mm

Base Pad SV/STI 4mm

*Not for sale to California and Washington residents. A courtesy email will be sent to CA/WA residents who place an order for a base pad that has the capability of taking a magazine past ten rounds. Ultimately a refund will be issued unless the purchaser is active Law Enforcement. CA/WA civilians can only purchase base pads listed on the following link - https://tarantacticalinnovations.com/magazine-extensions/california-compliant/

*Remove the metal insert at the bottom before installation*

The TTI Base Pad for STI, SV, SPS, & Rescomp Magazine Tubes Use the TTI Base Pad with the TTI spring and TTI Follower for maximum capacity.

• This Patented push pin design is indestructible and will not come off until you are ready to remove it. One Piece construction made from solid aluminum, will not break or come loose, which is essential in the heat of competition. This base pad allows the magazine to be disassembled in seconds with one hand and no tools. You don’t have to worry about losing small parts or specialty tools to disassemble it.
• This product is used by World and National Pistol and 3-Gun Champions! Rob Leatham, Max Michel, Shane Cooley, Travis Tomasie, Blake Miquez, Jessie Duff, Nils Jonasson, Chris Tilley, JJ Ricaza, Manny Bragg, Shannon Smith, Daniel Horner, Keith Garcia, Mike Viogt, Maggie Reese, Dave Pruitt, Phil Strader, Mike Seeklander and Ron Avery, Bennie Cooley.
• Weighs .4 oz

*4mm (4 the Gauge) is recommended for anyone doing mag tuning who has a USPSA mag gauge.

• The 4mm is angled in the back and will fit the gauge while allowing one extra round over the 3mm. It’s the base pad that all the mag tuners have been waiting for to get that extra edge!

4mm for STI/SPS/Rescomp 140/170mm tubes.

• 20rds in 140mm 40S&W
• 24rds in 140mm 38/9mm
• 29-30rds in 38/9mm

4G2 for all SV 140mm 40S&W old and new style tubes.

• Possible 21rds in 140mm 40S&W

Base Pad SV/STI 7mm

*Not for sale to California and Washington residents. A courtesy email will be sent to CA/WA residents who place an order for a base pad that has the capability of taking a magazine past ten rounds. Ultimately a refund will be issued unless the purchaser is active Law Enforcement. CA/WA civilians can only purchase base pads listed on the following link - https://tarantacticalinnovations.com/magazine-extensions/california-compliant/

*Remove the metal insert at the bottom before installation*

The TTI Base Pad for STI, SV, SPS, & Rescomp Magazine Tubes Use the TTI Base Pad with the TTI spring and TTI Follower for maximum capacity.

• This Patented push pin design is indestructible and will not come off until you are ready to remove it. One Piece construction made from solid aluminum, will not break or come loose, which is essential in the heat of competition. This base pad allows the magazine to be disassembled in seconds with one hand and no tools. You don’t have to worry about losing small parts or specialty tools to disassemble it.
• This product is used by World and National Pistol and 3-Gun Champions! Rob Leatham, Max Michel, Shane Cooley, Travis Tomasie, Blake Miquez, Jessie Duff, Nils Jonasson, Chris Tilley, JJ Ricaza, Manny Bragg, Shannon Smith, Daniel Horner, Keith Garcia, Mike Viogt, Maggie Reese, Dave Pruitt, Phil Strader, Mike Seeklander and Ron Avery, Bennie Cooley.
• Weighs .5 oz

7mm for 140mm Open mags and 126mm Open or Limited mags, or older under length Infinity Big Sticks.

• 24rds in SV/STI 140mm 38/9mm

*This is preferred base pad for non-big stick tubes in Open division to get 23-24rds without extending the mag too long where it’s tricky to do fast reloads.

7mm for SPS 134/164mm 38/9mm and 40S&W.

• 30rds in 164mm 38/9mm.
• 23rds in 134mm 38/9mm.
• 21rds in 134mm 40S&W

*Due to the variances in mag tube dimensions from different companies and even different generations of mags from the same company, the base pad may require minor fitting to the tube and the back of the lips may need the sharp edges buffed down so the mag will fit the gauge.*