MBX Competition Extension Basepads

MBX 2 Pack "Mega 57" & "Mini 47" Extension Magazines
MBX 2 Pack "Mega 57" & "Mini 47" Extension Magazines

On Sale
Limited Time Only!


Includes:


- 1 MBX "Mega 57" PCC Competition Extension Basepad
- 1 MBX "Mini 47" PCC Competition Extension Basepad


All Extension Basepads include springs for Factory Glock 9mm and ETS Magazines only


MBX 2 Pack "Mega 57" & "Mega 57" Extension Magazines
MBX 2 Pack "Mega 57" & "Mega 57" Extension Magazines

On Sale
Limited Time Only!


Includes:


- 2 MBX "Mega 57" PCC Competition Extension Basepad


All Extension Basepads include springs for Factory Glock 9mm and ETS Magazines only


MBX 2 Pack "Mini 47" & "Mini 47" Extension Magazines
MBX 2 Pack "Mini 47" & "Mini 47" Extension Magazines

On Sale
Limited Time Only!


Includes:


- 2 MBX "Mini 47" PCC Competition Extension Basepad


All Extension Basepads include springs for Factory Glock 9mm and ETS Magazines only


MBX 3 Pack "Mega 57", "Mini 47", "Standard 36" Extension Magazines
SALE! 10% Off
3 Pack "Mega 57", "Mini 47", "Standard 36" Extension Magazines

Includes:
- 1 MBX "Mega 57" PCC Competition Extension Basepad
- 1 MBX "Mini 47" PCC Competition Extension Basepad
- 1 MBX "Standard 36" PCC Competition Extension Basepad


All Extension Basepads include springs for Factory Glock 9mm and ETS Magazines only


MBX "Mega 57" Competition 6" Extension Basepad with Custom Spring for 9mm Glock style & ETS magazines only
MBX "Mega 57" Competition 6" Extension Basepad with MBX Custom Spring

On Sale
Limited Time Only!


Adds Maximum capacity up to 57

Plus 26 Rounds on Glock 31


For 9mm Factory Glock Style and ETS Magazines Only.


Includes:
- MBX 6" Mega Extension Basepad
- MBX 28 Coil Custom Spring



How to Assemble, Align, & General Tips For MBX "Mega 57" & "Mini 47" Competition Extension Basepads Video
MBX "Dual Purpose" Mega Extension Basepad with Custom Spring for 9mm Glock style & ETS magazines only
MBX "Dual Purpose" Mega extension for Glock Style Magazines

On Sale
Limited Time Only!


Now offering the "Dual Purpose" Mega extension. The MBX Mega extension has been a very popular product used on the Glock style 31 round tube, but we have seen a use for it to be used on a Glock style 17rd short tube. This gives the user options of capacity and overall length to suit their personal liking.


When used on a short 17rd tube, it gives you 43 rounds.


We have engraved capacity witness lines and reference numbers for both short and long tubes. Comes with a 22-coil spring specifically to be used with the 17rd tube with the option upon checkout to purchase an additional 28-coil spring so you can use it on both short and long tubes.


MBX "Mini 47" Competition 4" Extension Basepad with Custom Spring for 9mm Glock style & ETS magazines only
MBX "Mini 47" Competition 4" Extension Basepad with MBX Custom Spring

On Sale
Limited Time Only!


Adds Maximum capacity up to 47

Plus 16 Rounds on Glock 31


For 9mm Factory Glock Style and ETS Magazines Only.

Includes:
- MBX 4" Mini Extension Basepad
- MBX 24 Coil Custom Spring


MBX "Standard 36" Competition Extension Basepad with Custom Spring for 9mm Glock style & ETS magazines only
SALE! 10% Off "Black only"
MBX Standard PCC Competition Extension Basepad with MBX Custom Spring

On Sale
Limited Time Only!


Plus 5 Rounds on Glock style 31 round 9mm magazine for total of 36


For 9mm Factory Glock Style and ETS Magazines Only


Includes:
- MBX Standard PCC Extension Basepad
- MBX 19 Coil Custom Spring


MBX "140mm 23" Competition Glock Style Extension Basepad with Custom Spring For 9mm/.40cal
SALE! 10% Off "Black only"
MBX 140mm Competition Glock Style Extension Basepad with MBX Custom Spring

On Sale
Limited Time Only!


Plus 6 Rounds on 17 Round 9mm Glock Style Magazine for total of 23


For 9mm Factory Glock and ETS Magazines Only


Includes:
- MBX 140mm Competition Glock Style Extension Basepad
- MBX Custom Spring


MBX Extension Basepad Repair Kit
MBX Extension Basepad Repair Kit

Includes:
- Baseplate
- Silicone
- Pin
- Set Screw
- Washer
- Screw


MBX Pistol Caliber Carbine (PCC) & Glock Style Products