Specifications:
length when fully extended: 182 mm / 7.1"
length when fully collapsed: 85 mm / 3.35"
weight: 104 grams / 3.67 oz
 
Our Advanced Buffer System is designed to replace regular factory 82.5 mm / 3.25" buffers.
 
Our Advanced Buffer System absorbs felt recoil considerably better than regular buffers, keeping your rifle more steady and allowing for quicker follow-up shots. Made of strong titanium and aluminium parts to keep the weight down and Long Life springs and durable rubber to maximize life cycle.
 
The system comes with four springs with different weight to be used with different bolt carriers and loads of ammo.
 
Moving parts only 48 grams (sping incl.)
Installed spring has about 4,5kg force power, others are: 1. +20%, 2. -25%, 3. -35%