Faxon Firearms Modular Magazine Extensions are rigorously tested with and engineered for the Glock® G19 handgun platform. Machined from 6061 T6 aluminum with a type 2 anodize finish, the unique modularity of these extensions allows users to choose from a number of setups and finishes for their Glock 19® pistol.  
 
All Faxon Modular Magazine Extension Kits include assembly screws, while +5 and combo kits also include a +5 compatible spring. +2/3 kits are OEM spring compatible.  
When assembled, screws should be torqued to 12-15 in/lbs.  
 
*Faxon Firearms Modular Magazine Extensions are tested for compatibility only with Glock® G19 OEM/factory magazines. These extensions are not recommended for aftermarket magazines. Faxon recommends use of the inner base plate of the existing magazine when installing a Faxon Firearms Modular Magazine Extension.  
 
3/32 Allen key is included* 
Faxon Firearms Magazine Extensions are backed by the Faxon Firearms Lifetime Guarantee. 
Tech Specs: 
Material: 6061 T6 Aluminum 
Finish: Type 2 Anodize 
Measurements:  
Width: 1.2in 
Height: .84in (sleeve), 1.19in (+3), 1.52in (+5)
Length: 1.7in  
of +3 including mag: 5.06in 
 of +5 including mag: 5.35in  
Weight: 
Loaded +5, 115 Grain: .79 lbs 
Unloaded +5: .27 lbs 
Loaded +3, 115 Grain: .71 lbs 
Unloaded +3: .24 lbs