G&P WOC Fighting Cat Fixed Stock GBB Rifle Tactical Airsoft Surgeon recommends using the

Airsoft Surgeon recommends using the best quality hop up chambers and BBs

with high flow internals

Reason being that with the long contact patch nub

01 Precision AEG Inner Barrel (247mm)  Internal diameter 6

After a period of testing

G&P WOC Fighting Cat Fixed Stock GBB Rifle Tactical Airsoft Surgeon recommends using theNEW RELEASE! G&P Full Metal Custom M4 Series based on WA M4 Gas Blow Back Rifle WA internal parts with all possible METAL upgrade from G&P such as Hop up chamber set Crispy Metal Sounds & Smoother slide cycling 4 Sides 3. 5inch Free Floating Unit Thanks G&P Industry offers this Compact Size M4 Gas Blow Back Rifle Upgrade Include: WA Fighting Cat Metal Body (WP01) WA Fighting Cat Front Set (WP77) WA M4A1 Spare Magazine (50rds) Flash QD Flip Up Sight