With the Modular Tri-Rail Base Mount, you are able to choose which side you want to mount your accessories on with ease. Made from high quality durable metal alloy which can withstand harsh abuse. You can attach up to 4 x 4.5cm rail or 2 x 12.5 cm rail.
Tri-Rails Base Mount and STANAG Dimensions.
Lenght: 13 cm ( 5.2 inch)
Material: Aluminum Alloy