AIR TUBE EARPIECE BATTERY it may sometimes be necessary

it may sometimes be necessary to set a higher poppet

Increased material strength allows for larger gas compartment

It's slim construction doesn't add much weight to your scope setup

Theflat straps do not interfere when combined with a backpack or vest and are comfortably padded

handguard and stock construction

AIR TUBE EARPIECE BATTERY it may sometimes be necessaryAir Acoustic Tube Earpiece: With This Earpiece You Can Clip It Onto Your Shirt And Begin Using Your Radio With No Hands. It Has a Built In Microphone In The Ptt Switch And a Transparent Tube Connecting The Ear Bud Making You Look Like a Secret Service Agent Or a Body Guard. New Baofeng Throat Mic Air Tube Earpiece Headset for Baofeng Uv5r Bf 888s Radio. 100% Brand New And High Quality