TNT studio S+ retrofit barrel for k98 air cocking rifle

New accuracy special set available
6.03mm steel inner barrel with super smooth process
S+ technology to reduce initial position of the bb with less contact point and more centered position
CNC aluminum hop chamber with TR type hop up bucking
easy to install instead of original parts
suitable for SW/ST k98 air cocking rifle

Included parts:
-470mm inner barrel
-Aluminum hop chamber
-hi performance hop bucking