Not for sale to California residents. A courtesy email will be sent to CA 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. CA residents can only purchase +0 base pads or GLOCK 43 and GLOCK 42 base pads. The 43 and 42 base pads do not take the mag capacity past ten rounds

Ultralight Short +6 Base Pad For New Sig Sauer MPX 35 Round "THRiL" 9mm Magazines

The SIG SAUER enhanced factory MPX 35 round magazine is a substantial improvement over the previous factory mags. In addition to 5 extra rounds, these new magazines have increased reliability and durability in a lightweight polymer body. 35 rounds just isn’t enough. Those are rookie numbers, and we’re here to help you kick those numbers up! Maybe you don't want to add a whole 9 rounds, how about 6? We’re pretty happy with 41 rounds and we know you will be too. Using our patented, proven push-pin design, no tools are necessary for field strip cleaning. The one piece design of the base pad adds just enough weight (2.1oz) to help empty magazines drop free and clear. The shape of our base pad is designed to save weight, and make it easy to grab when you’re going for a fast and consistent reload. Machined out of billet aluminum and hard anodized, we set your durability and longevity concerns to rest. All machining and manufacturing is done in the USA.

• Designed to work with Sig Sauer's *NEW* 35 round "THRiL" 9mm magazine
• Will NOT work with Sig Sauer's 30 round "Lancer" 9mm magazine
• Overall weight 2.1 oz.
• Length, 1.93 inches.
• Height, 1.1 inches.
• No Spring required, designed to work in conjunction with OEM spring
• Patented, proven push-pin design.
• No tools needed, just push the pin down, slide the base pad onto the magazine and push the pin up to lock the base pad onto the magazine. Easily attaches and detaches from the magazine.
• No specialty tools, devices, or additional springs required for assembly/disassembly, simply pop off the base pad and remove the insert at the bottom of the spring and slide on the extension.
• One piece design; no small parts to keep track of.
• Minimal length addition to allow usage while in a prone position.
• Holds 41+1 in 9mm.
• The added weight helps the magazine drop free easier for faster reloads.
• CNC machined from billet aluminum.
• Hard anodized.
• Made in the USA.

Designed to work with Sig Sauer's NEW 35rd 9mm Magazine.

Please check your local and state laws before purchasing. If your order needs to be refunded due to compliance issues, you will be subject to all applicable fees.  Please see our Returns/Cancellations Terms for more information. 

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov