CELCIUS CTW Reformation Hop Up - Chamber Intro.

Upgrade for: Systema PTW Hop Up & Barrel A&K PTW Hop Up & Barrel G&D DTW Hop Up & Barrel FCC PTW Hop Up & Barrel Features: NEW - One Piece Hop Up Rubber NEW - One Piece Hop Up Adjuster NEW- Reinforced Hop Up Adjuster Holder NEW - Modified Barrel Key NEW - Axis Alignment Ring Why it is good for you? 1. One piece hop up rubber will give you 100% air seal 2. Better Hop Up stability so you will get better accuracy 3. One piece is simple, and much easier to install 4. Barrel Keys can be opened easil